Journal of Mining and Metallurgy, Section B: Metallurgy
type: channel
description: Journal of Mining and Metallurgy, Section B: Metallurgy -an international medium for the publication of contributions on the theory and practice of metallurgy
publisher: University of Belgrade, Technical Faculty in Bor
language: en
publication name: Journal of Mining and Metallurgy, Section B: Metallurgy
issn: 1450-5339
copyright: Authors retain copyright of the published papers and grant to the publisher the non-exclusive right to publish the article, to be cited as its original publisher in case of reuse, and to distribute it in all forms and media. The Author(s) warrant that their manuscript is their original work that has not been published before; that it is not under consideration for publication elsewhere; and that its publication has been approved by all co-authors, if any, as well as tacitly or explicitly by the responsible authorities at the institution where the work was carried out. The Author(s) affirm that the article contains no unfounded or unlawful statements and does not violate the rights of others. The author(s) also affirm that they hold no conflict of interest that may affect the integrity of the Manuscript and the validity of the findings presented in it. The Corresponding author, as the signing author, warrants that he/she has full power to make this grant on behalf of the Author(s). Any software contained in the Supplemental Materials is free from viruses, contaminants or worms. The published articles will be distributed under the Creative Commons Attribution ShareAlike 4.0 International license (CC BY-SA). Authors are permitted to deposit publisher's version (PDF) of their work in an institutional repository, subject-based repository, author's personal website (including social networking sites, such as ResearchGate, Academia.edu, etc.), and/or departmental website at any time after publication. Upon receiving the proofs, the Author(s) agree to promptly check the proofs carefully, correct any typographical errors, and authorize the publication of the corrected proofs. The Corresponding author agrees to inform his/her co-authors, of any of the above terms.
items: Investigating the Al-Cr-La ternary system: Al-rich corner phase equilibria at 600 °C
items: Influence of growth velocity v and temperature gradient G on the interlamellar spacing λ of FeC unidirectionally crystallized eutectic
items: Extraction and recovery of zinc, potassium, and sodium from blast furnace dust by ultrasonic-assisted ammonia leaching
items: A comparative study of mechanical behaviour of heat-treated 3D printed In-718 and ASTM F75 alloys across multiple length scales
items: Structure, mechanical properties, and corrosion resistance of low-nickel nitrogen-alloyed austenite stainless steel
items: Aluminium thermal reduction process for preparing ferrosilicon and alumina from fly ash
items: Effects of scanning speed on mechanical, wear property, and corrosion behavior of CP-Ti fabricated by the selective laser melting technique
items: Optimization of smelting process of magnesium based on machine learning
items: Phase and roughness analysis of nanocrystalline coatings based on 310S steel with aluminum additions
items: Influence of holding time during rapid tempering after rapid austenitization on the microstructure and mechanical properties of low carbon steel
items: Evolution of microstructure under different homogenization conditions and its effect on recrystallization processes during hot rolling of AA5182 alloy
items: Algorithm to optimize thermodynamic parameters: A review
items: Dissolution kinetic mechanisms of FeCr₂O₄ spinel in MgO-Al₂O₃-SiO₂ slag system: Elemental dissolution and component diffusion
items: Extraction of vanadium from pet-coke gasification cinder: Part 1 leaching kinetics studies in sulphuric acid medium
items: The influence of cold, warm and hot deformation on microstructure and mechanical properties of Inconel 718 superalloy
items: Oxidation and property evolution of AISI T5 steel under varying heat treatments
items: The influence of nickel grade and its occurrence state on high pressure acid leaching behavior of lateritic nickel ores
items: The influence of Cu content on microstructure and mechanical properties of PM-fabricated Ti-18Nb-xCu alloy
items: Effect of copper addition on the microstructure, mechanical, thermal, and magnetic properties of Fe-Ni-Cu alloys
items: Effects of welding parameters on percentage dilution and mechanical properties in welded joints of ultra-high hardness armour steels
items: Effect of reduction ratio on die fill-out and hardness profile of cold-drawn polygonal rods made of acid resistant steel X6CrNiTi18-10
items: Optimizing calcium additions for a strength–corrosion resistance balance in squeeze-cast Zn–Al–Cu–Mg alloys
items: Antimony obtaining by hydrometallurgy - Emphasis on recovery from leach solutions
items: Constitutive analysis of Cu-DHP alloy during hot compression
items: Microstructure changes in welded duplex stainless steel and their effects on hardness and corrosion resistance
items: Microstructure and hardness of Bi-modified magnesium AZ31 alloys subjected to severe plastic deformation
items: Enhancing Corrosion Resistance and Structural Properties of Ni-TiO2 Composite Coatings: The Impact of SDS Surfactant
items: Gold recovery and migration mechanism in the copper smelting and converting
items: Effect of adsorption of surfactant mixtures on wettability of sintering dust
items: Studying the structure and properties of quasi high-entropy alloys of the Fe-Co-Cr-Ni-Mn-Nb system with Mo additives

Investigating the Al-Cr-La ternary system: Al-rich corner phase equilibria at 600 °C
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description: The phase equilibria of the ternary Al-Cr-La system were investigated in the Al-rich corner at 600 °C, with a minimum Al content of 98.77 at.%. The formed phases, transformation temperatures (specifically liquidus and solidus), and microstructure evolution were experimentally determined by isothermal annealing at 600 °C for 600 hours and by Differential Scanning Calorimetry (DSC) analysis. A Scanning Electron Microscope (SEM) equipped with Energy-Dispersive X-ray Spectroscopy (EDXS) was used to fully characterize the samples. The equilibrium microstructure consists of (Al), the binary phase Al45Cr7, and the ternary phase LaCr2Al20 in samples with increased Cr content (from 0.03 up to 1.12 at.%), while it consists of (Al), the mixture (Al) + Al11La3, and the ternary LaCr2Al20 phase in samples with increased La content (from 0.03 up to 0.45 at.%). It was observed that even a small amount of alloying elements leads to the formation of the ternary phase.
subject: Original Scientific Paper
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creator: Tilen Balaško
creator: Adam Zaky
creator: Simona Delsante
rights: Copyright (c) 2026 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2026-06-29
publication date: 2026-06-29
starting page: 103
ending page: 113

Influence of growth velocity v and temperature gradient G on the interlamellar spacing λ of FeC unidirectionally crystallized eutectic
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description: The paper presents the results of investigations concerning the influence of growth velocity (v) and temperature gradient (G) on the interlamellar spacing (λ) in an irregular iron-carbon (Fe-C) eutectic unidirectionally crystallized. The aim of this study was to verify the growth model of D.J. Fisher and W. Kurz and to determine the relationship λ = f(v, G) based on experimental and numerical analysis. The crystallization process was carried out using the Bridgman-Stockbarger method with liquid metal cooling (LMC), and the structure was studied using optical microscopy and scanning electron microscopy. In parallel, numerical simulations were performed in ProCAST to determine the temperature gradient in the liquid at the crystallization front. The results showed that increasing the growth velocity at constant G leads to a decrease in interlamellar spacing λ, while at constant velocity a decrease in G results in an increase in λ. The experimental data obtained showed good agreement with the results of mathematical modelling, confirming the suitability of the W. Kurz and D.J. Fisher model in describing the crystallization of irregular Fe-C eutectic alloys.
subject: Original Scientific Paper
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creator: Adrian Świątkowski
creator: Tomasz Wiktor
creator: Dariusz Kopyciński
rights: Copyright (c) 2026 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2026-06-29
publication date: 2026-06-29
starting page: 91
ending page: 101

Extraction and recovery of zinc, potassium, and sodium from blast furnace dust by ultrasonic-assisted ammonia leaching
type: item
description: To efficiently recover valuable elements (Zn, K, Na) from blast furnace dust (BFD) and address issues such as alkali metal enrichment and disrupted furnace operation caused by its direct reuse, ammonia leaching experiments were conducted in this study using an NH3·H2O–NH4HCO3 system combined with ultrasound and ammonium persulfate. Single-factor experiments were performed to investigate the effects of variables such as [NH3]T and solid-to-liquid ratio on the leaching efficiencies of Zn, K, and Na under ultrasonic conditions. Under the conditions of [NH3]T = 6 mol·L−1, a solid-to-liquid ratio of 1:6, [NH3]/[NH4+] = 1:1, 40 °C, and 90 W ultrasound power, the leaching efficiencies of Zn, K, and Na reached 90.73%, 91.45%, and 91.56%, respectively. Based on these results, the effect of ultrasound combined with 1 mol·L−1 ammonium persulfate on zinc leaching was further evaluated, and the Zn leaching efficiency increased to 95.16%, while the leaching efficiencies of K and Na slightly increased to 92.35% and 92.50%, respectively. The enhanced Zn leaching is reasonably attributed to the synergistic effects of ultrasonic intensification and persulfate oxidation, in which ultrasound promotes particle fragmentation and mass transfer, while activated ammonium persulfate generates SO4•⁻ radicals that facilitate the oxidation of refractory ZnS. Kinetic analysis indicated that Zn leaching was mainly controlled by the surface chemical reaction, and ultrasound reduced the apparent activation energy from 62.37 to 44.15 kJ·mol−1. This synergistic leaching process, with high selectivity and low cost, provides theoretical and technical references for BFD resource recovery.
subject: Original Scientific Paper
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creator: Jiantao Ju
creator: YongWei Hu
creator: Ning Luo
creator: WenKe Guo
creator: Qiang Bi
rights: Copyright (c) 2026 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2026-06-29
publication date: 2026-06-29
starting page: 115
ending page: 129

A comparative study of mechanical behaviour of heat-treated 3D printed In-718 and ASTM F75 alloys across multiple length scales
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description: The hardness and strength of many alloys often differ when measured at the nano, micro, and macroscopic scales. Therefore, it is essential to study the mechanical behavior of important alloys across a wide range of length scales. In this work, we present a scenario in which two industrially significant alloys, In-718 and ASTM F75, exhibit different behaviors at the micro and macroscopic levels. Both alloys are promising candidates for similar applications in the aerospace and petroleum industries. The alloys were first 3D printed using selective laser melting (SLM) and then heat-treated in a vacuum. The average yield strength and percentage elongation (along the build direction) of the In-718 alloy were 29% and 19% higher, respectively, than those observed for the ASTM F75 alloy. The difference between the ultimate tensile strength (UTS) and Vickers hardness (at a load of 98 N) was almost negligible, i.e., less than 5%. In contrast to the Vickers hardness values of 3.9 GPa and 3.8 GPa, the average nanohardness of the In-718 and ASTM F75 alloys was 5.7 GPa and 7.6 GPa, respectively, which was substantially higher than their Vickers hardness. Furthermore, the ASTM F75 alloy demonstrated much better wear resistance in ScanningWear tests performed using a nanoindenter. The explanation for these differences and the similarities between macro- and nanomechanical behavior are presented in this work.
subject: Original Scientific Paper
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creator: Muhammad Zubair
creator: Khushnuda Nur
creator: Ehsan ul Haq
creator: Furqan Ahmed
creator: Muhammad Adil Javed
creator: Muhammad Junaid Khan
creator: Muhammad Mubeen Naveed
creator: Mirza Mueed ul Hassan
creator: Ahmed Abdullah
rights: Copyright (c) 2026 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2026-06-29
publication date: 2026-06-29
starting page: 53
ending page: 67

Structure, mechanical properties, and corrosion resistance of low-nickel nitrogen-alloyed austenite stainless steel
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description: This study investigates the structure, mechanical properties, and corrosion resistance of low-nickel nitrogen-alloyed austenitic stainless steels (Cr17Mn9Ni3N, 05Cr18Mn10Ni3N) as cost-effective alternatives to conventional AISI 304L and AISI 321 grades. The alloys were produced by vacuum induction melting with nitrogen introduced via nitrided ferrochrome. Microstructural analysis confirmed fully austenitic structures with finer grain sizes (ASTM No. 4.5–6.0) compared to conventional steels (ASTM No. 3.5–4.0). Mechanical testing revealed superior yield strength (~414 MPa) and tensile strength (~730–748 MPa) in nitrogen-alloyed steels, attributed to solid-solution strengthening by nitrogen. However, the impact toughness at cryogenic temperatures (-196°C) was reduced, and brittle facets were found on the fracture surface. Potentiodynamic polarization tests showed that AISI 304L steel exhibited a higher pitting potential. The pitting potentials of Cr17Mn9Ni3N and 05Cr18Mn10Ni3N steels were lower than that of AISI 304L but higher than that of AISI 321 steel. Economic analysis highlighted significant cost savings potential through nickel substitution with nitrogen. The results validate nitrogen-alloyed steels as viable alternatives for applications requiring high strength and corrosion resistance, though cryogenic applications require careful nickel content optimization.
subject: Original Scientific Paper
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creator: Sarkis Muradian
creator: Yan Sun
creator: Qian Zhong
creator: Mingzhou Liu
creator: Chen Su
creator: Wenqiang Sun
rights: Copyright (c) 2026 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2026-06-29
publication date: 2026-06-29
starting page: 69
ending page: 79

Aluminium thermal reduction process for preparing ferrosilicon and alumina from fly ash
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description: There has been a focus on environmental protection and the recycling of solid waste resources, particularly fly ash and aluminum dross. Efforts to utilize fly ash efficiently have increased. In this paper, a process is introduced for producing alumina-rich slag and ferrosilicon alloy through aluminothermic reduction of fly ash with aluminium dross. Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) confirm the formation of spherical ferrosilicon alloy encased in a loose, porous alumina matrix during the aluminothermic reduction process. Thermodynamic calculations indicated that the reduction temperature of SiO2 and mullite decreases in the presence of Fe2O3. Under conditions of 1673 K, a specific aluminium dross to fly ash ratio (A/F), and a reduction time of 20 minutes, the magnetic fraction contains 85.89% ferrosilicon, while the non-magnetic fraction has an alumina content of 79.42%. This process offers a solution with potential environmental and economic benefits for the application of fly ash and aluminum ash.
subject: Original Scientific Paper
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creator: Qixiang Su
creator: Qingchun Yu
creator: Xiaomei Zhu
creator: Tianlie Xiao
creator: Biao Ye
rights: Copyright (c) 2026 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2026-06-29
publication date: 2026-06-29
starting page: 1
ending page: 12

Effects of scanning speed on mechanical, wear property, and corrosion behavior of CP-Ti fabricated by the selective laser melting technique
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description: In this study, CP-Ti was prepared using the selective laser melting (SLM) technique to systematically investigate the effect of scanning speed on microstructure, mechanical properties, wear properties, and corrosion behavior. The optimum relative density of 99.87±0.12% was achieved at a scanning speed of 800 mm/s, with corresponding tensile strength, yield strength, elongation, and hardness values of 543±17 MPa, 453±7 MPa, 14±1%, and 294±4 HV, respectively. Additionally, SLM-processed CP-Ti with optimum relative density exhibited the lowest wear rate (2.72×10-7 mm2/N) and excellent corrosion resistance. These results indicate that CP-Ti with high relative density, strength, and hardness, low wear rate, and excellent corrosion resistance can be fabricated by controlling the scanning speed, making it well-suited for biomedical implant applications.
subject: Original Scientific Paper
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subject: Array
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creator: Weimin Chen
creator: Jinlong Hu
creator: Zhuhao Wen
creator: Haoqin Lin
creator: Liying Sun
creator: Qiang Zhang
rights: Copyright (c) 2026 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2026-06-29
publication date: 2026-06-29
starting page: 25
ending page: 39

Optimization of smelting process of magnesium based on machine learning
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description: The traditional magnesium reduction process consumes a significant amount of energy, which contradicts China’s green and low-carbon development goals. Therefore, exploring more energy-efficient methods is crucial for environmental protection. The magnesium reduction rate is influenced by several factors, including gas flow rate, briquetting pressure, ferrosilicon content, reduction temperature, and reduction time. In this study, data analysis utilizing a machine learning algorithm: support vector machine (SVM)—was employed to predict the magnesium reduction rate. Given that energy-saving processes are a primary objective for enterprises, the processing was optimized using the particle swarm optimization (PSO) algorithm based on the SVM model, while maintaining a constant magnesium reduction rate. This optimization aims to reduce energy and gas consumption during the magnesium smelting process. Experimental verification of the magnesium reduction rate under the optimized processing conditions demonstrated that the application of machine learning algorithms can lead to resource savings in the magnesium reduction process. To further evaluate the environmental benefits of the optimized process, a Life Cycle Assessment (LCA) focusing on energy consumption and carbon dioxide (CO2) emissions was conducted. The LCA results indicate that the optimized process significantly reduces life cycle energy consumption (reduced by 5.33%) and CO2 emissions (reduced by 3.63%) compared with the initial process, providing precise environmental performance data for the promotion and application of magnesium alloys in lightweight structures.
subject: Original Scientific Paper
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subject: Array
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creator: Xin Li
creator: Junhua Guo
creator: Jianglei Fan
creator: Yongbiao Wang
creator: Yanyan Li
creator: Xiaoguang Zhou
creator: Shuxia Tian
creator: Feng Mao
creator: Kunlin Miao
creator: Shizhong Wei
rights: Copyright (c) 2026 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2026-06-29
publication date: 2026-06-29
starting page: 41
ending page: 52

Phase and roughness analysis of nanocrystalline coatings based on 310S steel with aluminum additions
type: item
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subject: Original Scientific Paper
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subject: Array
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creator: Mariola Spalik
creator: Barbara Kucharska
creator: Aneta Jakubus
creator: Grzegorz Krzywoszyja
rights: Copyright (c) 2026 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2026-06-29
publication date: 2026-06-29
starting page: 81
ending page: 90

Influence of holding time during rapid tempering after rapid austenitization on the microstructure and mechanical properties of low carbon steel
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description: The rising demand for high-quality steel in construction, automotive, and other industrial sectors presents significant challenges, particularly regarding energy consumption and CO₂ emissions from large-scale production. This study explores the use of rapid tempering as a heat treatment strategy to enhance the mechanical properties of low carbon steel while potentially reducing the environmental footprint of steel manufacturing. Rapid tempering was performed following rapid austenitization at 1000 °C for 90 seconds using a 7-kW induction furnace, followed by quenching in ice water. Soaking times of 5, 15, and 20 seconds were applied during tempering, and results were compared with conventional heat treatment. The rapid tempering process resulted in a microstructure consisting of tempered martensite, with only slight morphological changes in the martensitic phase compared to conventional tempering, and the formation of markedly finer cementite precipitates. Mechanical testing demonstrated superior performance in rapid tempering, with the 5-second condition achieving the highest hardness (422.667 HV), tensile strength (1308.9 MPa), and yield strength (1270 MPa), while the 20-second condition yielded the highest toughness (139.336 J/cm²) and elongation (33.833%). Based on the balance among tensile strength, hardness, and toughness, the RA-RT 5- second specimen exhibited the most optimal mechanical performance.
subject: Original Scientific Paper
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creator: Putu Reidita Artha Putri
creator: Akhmad Ardian Korda
creator: Eddy Agus Basuki
creator: Fadhli Muhammad
creator: Tria Laksana
creator: Djalu Amardanta Priambudi
creator: Imam Al Syaukhani
creator: Septa Berti Santosa
rights: Copyright (c) 2026 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2026-06-29
publication date: 2026-06-29
starting page: 13
ending page: 24

Evolution of microstructure under different homogenization conditions and its effect on recrystallization processes during hot rolling of AA5182 alloy
type: item
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subject: Original Scientific Paper
  topic: section
subject: Array
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creator: Aleksandar Ćitić
creator: Tamara Radetić
creator: Filip Rajković
creator: Dejan Prelević
creator: Miljana Popović
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-12-20
publication date: 2025-12-20
starting page: 369
ending page: 383

Algorithm to optimize thermodynamic parameters: A review
type: item
description: Computational thermodynamics provides essential information for materials design. The CALPHAD (CALculation of PHAse Diagrams) method based on thermodynamic databases can be used for thermodynamic optimization and for calculating phase diagrams and thermodynamic properties in multicomponent systems. This article reviews the algorithms implemented in software for optimizing thermodynamic parameters. These software tools offer strong support for developing accurate thermodynamic databases. Recent advances in software and algorithms for thermodynamic parameter optimization are summarized, and their respective characteristics and potential limitations are analyzed. Finally, the development trends of software and algorithms for thermodynamic parameter optimization are discussed. This review will help interested readers understand the principles of thermodynamic optimization and contribute to the advancement of related algorithms.
subject: Review Paper
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subject: Array
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creator: Liang Zhang
creator: Xinyi Zhang
creator: Yuling Liu
creator: Jiangxing Wang
creator: Taibai Fu
creator: Shiyi Wen
creator: Bo Wang
creator: Ziqing Xie
creator: Yong Du
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-12-30
publication date: 2025-12-30
starting page: 385
ending page: 398

Dissolution kinetic mechanisms of FeCr₂O₄ spinel in MgO-Al₂O₃-SiO₂ slag system: Elemental dissolution and component diffusion
type: item
description: The molten chromite reduction direct alloying process serves as a pivotal metallurgical technology in stainless steel production, offering advantages such as reduced carbon consumption and improved production efficiency. In this study, to reveal the dissolution mechanism of chromite, pure phase of synthetic FeCr2O4, the main component of chromite, was used to replace chromite with complex compositions. The dissolution kinetics of FeCr2O4 in MgO-Al2O3-SiO2 slag were systematically investigated as functions of stirring intensity, MgO/ SiO2, and temperature, revealing its non-isothermal reactive dissolution characteristics. Experimental results demonstrated that the solubility of Cr2O3 exhibited a trend of initial increase followed by subsequent decrease as the MgO/SiO2 mass ratio increased. The maximum solubility was observed at a MgO/SiO2 mass ratio of 0.56. Additionally, temperature-related studies indicated that the dissolution of FeCr2O4 is progressively enhanced with increasing temperature under elevated thermal conditions (1500-1600 ℃). Meanwhile, scanning electron microscopy (SEM) analyses confirmed that the interfacial reaction between FeCr2O4 and slag components generated MgAl2O4, MgCr2O4 and MgO-xFeO solid solution, forming a boundary layer on the surface of unreacted FeCr2O4.The dissolution reaction on the surface of FeCr2O4 was the rate-controlling step in the dissolution process. The calculated activation energy of the dissolution process was 65.43 kJ·mol-1.
subject: Original Scientific Paper
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creator: Kang Shao
creator: Zhang Chen
creator: Lijun Wang
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-12-30
publication date: 2025-12-30
starting page: 399
ending page: 409

Extraction of vanadium from pet-coke gasification cinder: Part 1 leaching kinetics studies in sulphuric acid medium
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description: Petcoke cinder is a solid by-product generated during the gasification of petcoke, accounting for three to five percent of the petroleum coke mass. It commonly contains valuable metals like V, Ni, Al, and Fe, highlighting the resource's potential for vanadium extraction. Thus, it can be regarded as an emerging secondary source of vanadium and other critical metals. The conventional pyro-cum-hydrometallurgical process for vanadium recovery relied on alkali roasting, which was not only energy-intensive but also contributed to greenhouse gas emissions. Considering environmental concerns and high energy consumption, the current study embodies a state-of-the-art development of an economically viable process for extracting V from petcoke gasification cinders. This paper examines the method of sulfuric acid-leaching of vanadium from gasification cinders and the effects of various parameters, including acid concentration, temperature, process duration, percentage of H2O2, amount of sodium dodecyl sulfate (SDS), and solid-liquid phase ratios. The maximum vanadium yield of 95.62% was achieved under optimal conditions of sulfuric acid concentration, temperature, time, S/L ratio, and amounts of H2O2 and SDS, which were determined to be 4M, 90°C, 3 hours, 20%, and 6%, respectively. The shrinking surface-controlled model was employed to investigate leaching kinetics. The reaction order concerning sulfuric acid concentrations was found to be 1.29. According to the Arrhenius equation, the evaluated apparent activation energy for leaching was approximately 27.67 kJ/mol, and the empirical equation representing the acid leaching kinetics of vanadium is identified as 1-(1-α)1/3 = kt = (9.261 X 103) [H2SO4]1.2916exp[-27674/RT] T.
subject: Original Scientific Paper
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creator: Shibsundar Das
creator: Susmita Mohanta
creator: Akshay Kumar
creator: Devabrata Mishra
creator: Kamala Kanta Sahu
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 333
ending page: 344

The influence of cold, warm and hot deformation on microstructure and mechanical properties of Inconel 718 superalloy
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description: This study systematically examines the influence of precipitation on the microstructural and mechanical properties of Inconel 718 superalloy in as-received, solution heat-treated, peak-aged, and overaged conditions. Cold, warm, and hot deformation tests were performed at 25 °C, 400 °C and 800 °C using a constant strain rate of 5.55 × 10⁻⁴ s⁻¹. The results indicated dynamic strain aging during warm deformation at 400 °C in all investigated conditions. However, at temperatures above 400 °C, a pronounced reduction in strength was observed, accompanied by a corresponding increase in elongation for most conditions. Notably, the solution heat-treated samples exhibited anomalous behavior, showing an increase in Rp0.2 after deformation at 800 °C. This suggests the occurrence of dynamic precipitation during hot deformation in the solution heat-treated samples.
subject: Original Scientific Paper
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creator: Tugay Doğan
creator: Süleyman Gündüz
creator: Demet Taştemür
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 303
ending page: 315

Oxidation and property evolution of AISI T5 steel under varying heat treatments
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description: This study evaluates the effect of heat treatment on the mechanical, tribological, and oxidation behavior of AISI T5 steel. The chemical composition was first characterized using spectroscopy and SEM. A two-year oxidation test conducted in humid and relatively dry atmospheres showed strong environmental sensitivity: in humid air, the oxidation rate reached 11.27×10-2 P/P0 per month with a sharp increase after 25 days, whereas in dry air it remained below1.35×10-2 P/P0 per month, following a linear and nearly flat trend indicative of a protective oxide scale. Heat treatment significantly increased hardness from 34.15 ± 0.59 HRC (untreated) to 62.70 ± 0.66 and 60.80 ± 0.48 HRC for water and oil quenched steels, respectively. Impact strength decreased accordingly, with oil quenching offering the best hardness-toughness balance (60.8 HRC, 2.08 Kcv). Instrumented indentation confirmed substantial surface strengthening, with HIT rising to 17.39 ± 0.29 GPa (Q. Water) and 7.68 ± 0.12 GPa (Q. Oil). Under dry sliding, wear rates were reduced by 81.3% (Q. Water) and 62.5% (Q. Oil), with faster run-in in the water-quenched condition. XRD revealed tempered martensite with Fe3W3C/Cr7C3 (Q. Water) and Co3W3C (Q. Oil), consistent with thermal conditions. This study provides new experimental data on the effects of 15-minute austenitization followed by oil or water quenching on the properties of AISI T5 steel, highlighting its potential for process optimization.
subject: Original Scientific Paper
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creator: Abdenour DADOU
creator: Hamid DILMI
creator: Boudjema BEZZAZI
creator: Chouaib ARIBI
creator: Ismail DAOUD
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 317
ending page: 332

The influence of nickel grade and its occurrence state on high pressure acid leaching behavior of lateritic nickel ores
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description: This research evaluates the effects of nickel grade and occurrence state on the leaching behavior of lateritic nickel ores using high-pressure acid leaching (HPAL) at 250 °C with sulfuric acid. Three ores were selected for the study: Ore 1 (ultra-low-grade limonite, 0.73 wt.% Ni), Ore 2 (limonite, 1.34 wt.% Ni), and Ore 3 (saprolite, 2.00 wt.% Ni). Mineralogical studies (XRD, SEM, and EPMA) were conducted to provide insight into nickel-hosting phases and characteristics of the ore matrix. A higher nickel grade does not necessarily result in higher extraction. Ore 1 had the lowest nickel grade but achieved the highest extraction of Ni (97.25%) and Co (98.49%) under experimental conditions using an acid-to-ore (A/O) ratio of 0.40. This significant Ni extraction is attributed to nickel's structural substitution in goethite, an iron oxide mineral that dissolves readily under the HPAL process. Ore 2 also contains goethite as the dominant phase and achieved similarly high recoveries of Ni (97%) and Co (98%), however, Co recovery decreased slightly under higher acid conditions due to co-precipitation with hematite. Ore 3 had the highest nickel grade but the lowest leaching efficiency (<90% Ni). The generally low recoveries may be attributed to nickel being hosted in both goethite (a leachable phase) and lizardite (a less leachable phase). The silicate matrix of lizardite and its elevated magnesium content restricted the effective acid range and thus diminished nickel selectivity during the HPAL leaching process. The results highlight that the mineralogical occurrence state of nickel is more important than nickel grade in determining leaching performance. Therefore, low-grade limonite ores with favorable mineralogy can serve as potential feed sources for environmentally friendly sustainable nickel hydrometallurgical extraction.
subject: Original Scientific Paper
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creator: Aad Alief Rasyidi Baking
creator: Lejun Zhou
creator: Wei Liu
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-12-19
publication date: 2025-12-19
starting page: 357
ending page: 368

The influence of Cu content on microstructure and mechanical properties of PM-fabricated Ti-18Nb-xCu alloy
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description: This research investigated the influence of varying copper (Cu) concentrations (0, 5, 7, and 9 wt.%)on the sintering behaviour, microstructural development, and mechanical characteristics of Ti-18Nb alloy, fabricated through conventional powder metallurgy. Under specific sintering conditions (1150°C for 5 hours), Cu addition led to a more homogeneous microstructure and promoted the complete dissolution of Nb particles. X-ray diffraction (XRD) analysis confirmed the presence of alpha (α) and beta (β) Ti phases, along with the Ti2Cu phase, with its peak intensity increasing as Cu content rose. Mechanical properties were significantly enhanced by Cu addition. Yield strength increased almost linearly with Cu content. Compressive strength notably increased with 7 wt.% Cu, reaching 980 MPa, and slightly exceeded this value with 9 wt.% Cu. Hardness values increased due to solid solution strengthening in the α-Ti phase and the precipitation of the Ti2Cu phase, with the highest hardness (222 HV) observed in the 7 wt.% Cu alloy. The elastic modulus initially increased with 5 wt.% Cu, then subsequently decreased with further Cu additions; the Ti-18Nb-7Cu alloy exhibited the lowest elastic modulus at 13.34 GPa. Furthermore, the resilience of the alloys improved with the formation of the Ti2Cu phase, and a maximum value of 13.15 MJ m−3 was achieved.
subject: Original Scientific Paper
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creator: Hüseyin Demirtaş
creator: Rana Afif Anaee
creator: Muhamad Saad Faaik
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-12-19
publication date: 2025-12-19
starting page: 345
ending page: 355

Effect of copper addition on the microstructure, mechanical, thermal, and magnetic properties of Fe-Ni-Cu alloys
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description: In this study, FeNiCu alloys with two different copper contents were produced by arc melting. The aim was to investigate the effects of Cu content on the microstructural, mechanical, thermal, and Mössbauer properties of the alloys. Microstructures were examined using SEM micrographs. Vickers hardness tests were conducted to evaluate mechanical strength. Thermal behavior was analyzed using DSC. Magnetic characteristics were studied by Mössbauer spectroscopy. SEM analysis showed the presence of martensitic structures in both alloys, with the alloy containing more Cu exhibiting a higher amount of martensite. Hardness increased from 169.1 HV to 190.2 HV as Cu content increased. DSC results confirmed the martensitic transformation. The alloy with higher Cu content showed a higher transformation temperature and greater transformation energy released. Mössbauer spectra indicated the presence of both magnetically ordered and non-ordered phases in both alloys. Hyperfine parameters demonstrated changes in the local atomic environment due to Cu addition. The weak singlet obtained was associated with the FCC phase. The two sextets were attributed to ferromagnetic BCC phases arising from different environments of the Fe atom. The other sextet, with a low internal magnetic field of around 18 T, was ascribed to possible Ni- and/or Cu-rich surroundings of the Fe atom. Overall, increasing Cu in the alloy altered the microstructure, improved hardness, shifted the martensitic transformation temperature, and modified the magnetic hyperfine interactions. These results may aid in designing advanced Fe-based materials for structural and magnetic applications.
subject: Original Scientific Paper
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creator: Serdar Delice
creator: Hakan Gungunes
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 283
ending page: 292

Effects of welding parameters on percentage dilution and mechanical properties in welded joints of ultra-high hardness armour steels
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description: This study investigates the effects of Gas Metal Arc Welding (GMAW) parameters—specifically welding speed and stick-out—on the dilution and mechanical properties of welded joints composed of ultra-high hardness quenched and tempered (UHH-Q&T) armor steel and austenitic stainless steel filler metal. An optimization methodology was used to set constant parameters, including wire diameter, gas flow rate, welding voltage, and wire feed speed, based on equipment capabilities. Experimental trials varied welding speed and electrode stick-out while maintaining a constant current through inductance control. Although the welding parameters affected the melted base and filler metal areas, the dilution percentage remained unaffected. The correlation between dilution and welding current was validated. Microstructural and mechanical analyses confirmed the consistent behavior of the welded joints under the tested conditions.
subject: Original Scientific Paper
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creator: CHARLES DE VASCONCELOS
creator: NAIARA LE SÉNÉCHAL
creator: CRISTHIAN LOAYZA
creator: ADEMIR FILHO
creator: EDUARDO BRAGA
creator: ANDERSAN PAULA
creator: RICARDO WEBER
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 293
ending page: 302

Effect of reduction ratio on die fill-out and hardness profile of cold-drawn polygonal rods made of acid resistant steel X6CrNiTi18-10
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description: The study investigates the effect of the reduction ratio on strain hardening efficiency and load during the drawing process of austenitic acid-resistant steel X6CrNiTi18-10. The focus is on optimizing geometry-related process conditions to achieve the highest quality and productivity when drawing special-purpose rods with polygonal shapes, specifically square and hexagonal cross-sections. The research addresses how increasing the reduction ratio can enhance strain hardening while reducing the number of drawing passes, ultimately affecting quality and load. Numerical modeling was used to analyze the relationship between strain hardening and load versus the reduction ratio. Proper models and assumptions were formulated and subsequently verified through experiments, which confirmed the validity of the mathematical and numerical models for load estimation. The study quantified the effect of strain on strength properties by mapping of measured hardness along the strain gradient. The application of variable billet diameters produced a similar hardness profiles for both analyzed rod geometries and reversed the effect on underfilling of the corners. The findings indicate a threshold reduction ratio for producing sound rods with square or hexagonal cross-sections. Exceeding this threshold can cause excessive strain hardening, leading to increased hardness that impedes corner fill-out and/or results in failure.
subject: Original Scientific Paper
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creator: Maciej Rumiński
creator: Piotr Skubisz
creator: Piotr Micek
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 233
ending page: 248

Optimizing calcium additions for a strength–corrosion resistance balance in squeeze-cast Zn–Al–Cu–Mg alloys
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description: In this study, squeeze-cast Zn–Al–Cu–Mg alloys with varying Ca additions (0, 0.5, 1.0, and 1.5 wt.%) were investigated to evaluate the combined effects of microstructural evolution on mechanical and corrosion performance. Microstructural analysis showed a transition from coarse Zn-rich dendrites in the base alloy to a refined and uniform morphology with Ca additions up to 1.0 wt.%, followed by coarsening and increased porosity at 1.5 wt.% Ca due to excessive intermetallic formation. Mechanical testing indicated that the alloy with 1.0 wt.% Ca had the highest hardness (141 HV0.1) and tensile strength (359 MPa), attributed to grain refinement and dispersion strengthening, though with reduced ductility due to intermetallic brittleness. Electrochemical corrosion tests in 3.5 wt.% NaCl solution showed that the corrosion rate decreased from the base alloy to 1.0 wt.% Ca, confirming enhanced corrosion resistance due to microstructural refinement and protective film formation. However, excessive Ca addition (1.5 wt.%) increased the corrosion rate to 0.8109 mpy due to coarse intermetallics and porosity, which promoted localized attack. The results highlight that optimal Ca addition (1.0 wt.%) achieves a balance between strength, hardness, and corrosion resistance, making Ca-modified Zn–Al–Cu–Mg alloys promising candidates for structural and functional applications.
subject: Original Scientific Paper
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creator: THIYAGESAN G
creator: SankaraRaman Sankaranarayanan
creator: S.P. Kumaresh Babu
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 267
ending page: 279

Antimony obtaining by hydrometallurgy - Emphasis on recovery from leach solutions
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description: Antimony (Sb) is listed as a critical raw material in both Europe and the USA. Pyrometallurgical and hydrometallurgical methods are used for its recovery from raw sources. Hydrometallurgy is considered a suitable technology when Sb sources are low-grade ores or technogenic waste. After a brief introduction to the Sb species present in pregnant leach solutions (PLS) obtained by using different leaching reagents, this paper presents various methods for recovering Sb from PLS produced in the leaching hydrometallurgical stage. The discussion covers antimony recovery by hydrolysis and conversion, selective precipitation, crystallization, electrowinning, replacement, liquid-liquid extraction and ion exchange. Factors affecting the effectiveness of these processes and the recent attempts to improve these technologies are presented. Finally, possible future research directions are outlined.
subject: Review Paper
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creator: Marinela Panayotova
creator: Vladko Panayotov
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 249
ending page: 266

Constitutive analysis of Cu-DHP alloy during hot compression
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description: <!-- [if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <w:DontGrowAutofit/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--><!-- [if gte mso 9]><xml> <w:LatentStyles DefLockedState="false" LatentStyleCount="156"> </w:LatentStyles> </xml><![endif]--><!-- [if gte mso 10]> <![endif]--> The hot deformation behavior of the deoxidized high-phosphorus copper (Cu-DHP) was investigated during compressive deformation at a wide deformation temperature range of 200 to 1000 °C and strain rates ranging from 0.0005 to 0.4 s-1. The flow curves related to the hot working regime (500 to 1000 °C) generally showed distinct peak stresses with the fall of flow stress after the peak point, revealing the occurrence of dynamic recrystallization (DRX). By increasing the Zener-Hollomon parameter, the cyclic flow curves were replaced by the single-peak ones, and finally by the characteristic dynamic recovery (DRV) curves. At temperatures lower than half of the melting point, only DRV-type curves were observed. Based on the constitutive analysis, the apparent activation energy of 274.1 kJ/mol, hyperbolic sine power of 4.88, and power law stress exponent of 5.27 were obtained, resulting in the flow stress equations to describe material flow in the hot working regime. The power law breakdown and the importance of deformation temperature were also critically discussed based on mathematical fitting, strain rate sensitivity index, and microstructural analysis.
subject: Original Scientific Paper
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creator: Alireza Kalhor
creator: Kinga Rodak
creator: Milad Maleki
creator: Mohammad Javad Sohrabi
creator: Mohammad Mobasheri
creator: Hamed Mirzadeh
creator: Mohammad Habibi Parsa
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 221
ending page: 231

Microstructure changes in welded duplex stainless steel and their effects on hardness and corrosion resistance
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description: Duplex stainless steel (DSS) is extensively employed in a range of applications because it contains equal proportions of the two phases, ferrite and austenite, as well as a specific percentage of alloying elements. These combined benefits provide the material with superior strength, corrosion resistance, and good welding capacity. During the welding process of DSS, equal amounts of both phases are disrupted, resulting in precipitation. To investigate this phenomenon, this study aims to analyze the effect of changes in welding current by adding 10% N2 with Ar (as a shielding gas) on microstructure changes of DSS weldment. The changes were evaluated through the hardness and corrosion resistance. The study found that by increasing welding current, the Cr2N precipitates disappear in the WZ, with a small amount appearing only in the HAZ. However, the very low welding current causes the formation of Cr2N precipitates in both the WZ and HAZ. The results indicate a direct relationship between the volume fraction of austenite and the welding current. Reducing the welding current increases the hardness of DSS welds due to a higher ferrite volume fraction. Moreover, the corrosion resistance of DSS weldment improves with an increase in the welding current due to the increase in the amount of austenite phase.
subject: Original Scientific Paper
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creator: Mohamed S. Melad
creator: Mohamed A. Gebril
creator: Farag M. Shuaeib
creator: Thabet M. Elrabei
creator: Dawod Elabar
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 187
ending page: 196

Microstructure and hardness of Bi-modified magnesium AZ31 alloys subjected to severe plastic deformation
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description: <!-- [if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG/> </o:OfficeDocumentSettings> </xml><![endif]--><!-- [if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:TrackMoves/> <w:TrackFormatting/> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:DoNotPromoteQF/> <w:LidThemeOther>EN-US</w:LidThemeOther> <w:LidThemeAsian>X-NONE</w:LidThemeAsian> <w:LidThemeComplexScript>FA</w:LidThemeComplexScript> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <w:DontGrowAutofit/> <w:SplitPgBreakAndParaMark/> <w:EnableOpenTypeKerning/> <w:DontFlipMirrorIndents/> <w:OverrideTableStyleHps/> </w:Compatibility> <m:mathPr> <m:mathFont m:val="Cambria Math"/> <m:brkBin m:val="before"/> <m:brkBinSub m:val="--"/> <m:smallFrac m:val="off"/> <m:dispDef/> <m:lMargin m:val="0"/> <m:rMargin m:val="0"/> <m:defJc m:val="centerGroup"/> <m:wrapIndent m:val="1440"/> <m:intLim m:val="subSup"/> <m:naryLim m:val="undOvr"/> </m:mathPr></w:WordDocument> </xml><![endif]--><!-- [if gte mso 9]><xml> <w:LatentStyles DefLockedState="false" DefUnhideWhenUsed="false" DefSemiHidden="false" DefQFormat="false" DefPriority="99" LatentStyleCount="371"> <w:LsdException Locked="false" Priority="0" QFormat="true" Name="Normal"/> <w:LsdException Locked="false" Priority="9" QFormat="true" Name="heading 1"/> <w:LsdException Locked="false" Priority="9" SemiHidden="true" UnhideWhenUsed="true" QFormat="true" Name="heading 2"/> <w:LsdException Locked="false" Priority="9" SemiHidden="true" UnhideWhenUsed="true" QFormat="true" Name="heading 3"/> <w:LsdException Locked="false" Priority="9" SemiHidden="true" UnhideWhenUsed="true" QFormat="true" Name="heading 4"/> <w:LsdException Locked="false" Priority="9" SemiHidden="true" UnhideWhenUsed="true" QFormat="true" Name=…
subject: Original Scientific Paper
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creator: Javad Yazdi
creator: Mohammad Hassan Farshidi
creator: Gholamreza Ebrahimi
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 211
ending page: 219

Enhancing Corrosion Resistance and Structural Properties of Ni-TiO2 Composite Coatings: The Impact of SDS Surfactant
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description: Ni-TiO2 composite coatings are promising materials for enhancing the corrosion resistance and structural properties of steel substrates in various industrial applications. Corrosion remains a major issue for steel components, prompting the need for effective protective coatings. This study investigates the influence of sodium dodecyl sulfate (SDS) surfactant on the structural, electrochemical, mechanical, and morphological properties of Ni-TiO2 composite coatings electrodeposited on BS2 steel. The coatings were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), microhardness testing, and electrochemical techniques, including potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The results show that SDS incorporation led to an increase in the crystallite size of the coatings, from 35.92 nm to 80.82 nm, and a significant enhancement in the relative texture coefficient (RTC) along the (200) plane (88.09%). SEM analysis revealed a more compact and uniform surface morphology, with SDS reducing surface porosity from 8.23 × 10-3% to 2.20 × 10-6%. Electrochemical measurements demonstrated a substantial improvement in corrosion resistance, with charge transfer resistance (Rct) increasing from 5.17 kΩ.cm2 to 312.65 kΩ.cm2 and polarization resistance (Rp) rising from 2.5 kΩ.cm2 to 176.38 kΩ.cm2. The microhardness of the coatings decreased slightly from 256.26 kgf.mm-2 to 217.22 kgf.mm⁻², indicating a trade-off between mechanical strength and enhanced corrosion protection. These findings highlight the potential of SDS as a valuable additive for optimizing Ni-TiO2 composite coatings, although further research is needed to explore the impact of SDS concentration, long-term durability, and the performance of these coatings in more aggressive environments.
subject: Original Scientific Paper
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creator: Noureddine Ouhabab
creator: Elhachmi Guettaf Temam
creator: Hachemi Ben Temam
creator: Abderrahmane Gana
creator: Mohammed Althamthami
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 197
ending page: 210

Gold recovery and migration mechanism in the copper smelting and converting
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description: The gold embedded in the copper concentrate is enriched in the matte phase during copper smelting and transferred into blister copper during subsequent processing, via which the gold was recycled. In the copper smelting, gold dissolved and appeared as Au (Ⅲ) in the formed gold-matte solid solution. This solid solution could be formed in two ways: by exchanging Au atoms for Cu atoms in the Cu5FeS4 (matte) crystal lattice and by doping Au atoms in Cu5FeS4. In the matte converting, the transfer of gold from the matte phase to blister copper occurred spontaneously due to a fact that the surface tension between the gold and matte phases was considerably higher than that between the gold and copper phases. Gold capture by blister copper occurred by Au atoms replacing Cu atoms in the Cu cell.
subject: Original Scientific Paper
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creator: Shengli QU
creator: Lin ZOU
creator: Zhunqin DONG
creator: Lei Li
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-07-31
publication date: 2025-07-31
starting page: 151
ending page: 163

Effect of adsorption of surfactant mixtures on wettability of sintering dust
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description: In order to improve the wettability of sintering dust, we investigated the action mechanism of Triton X-100 (TX-100), which synergizes with Dodecyl Trimethyl Ammonium Bromide (DTAB). The settling times of nine different types of surfactants were measured, and the optimal ratio of cationic and nonionic surfactants to synergistically improve the wettability of sintering dust was determined from these measurements. The adsorption performance of the surfactants in the mixed solution and their effect on the wetting properties of sintering dust were investigated by sedimentation test, adsorption amount, Fourier transform infrared spectroscopy, and zeta potential determination. The results showed that a synergistic effect could be obtained when DTAB and TX-100 were mixed, and the DTAB: TX-100=2:2 composite solution with a concentration of 0.3% had a good wetting effect on the sintering dust. As the concentration of the surfactant mixtures increased, the content of hydrophilic functional groups and the absolute potential value of the surface of the sintering dust increased accordingly. Among them, DTAB was affected by alkyl interactions and had a greater adsorption affinity, and the hydrophobic tail of TX-100 was entangled with that of DTAB due to hydrophobic interactions and shared an adsorption site. This study contributes to the selection of surfactants for the efficient wetting of sintering dust and provides a theoretical basis for hydrometallurgy and dust control.
subject: Original Scientific Paper
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creator: Jiantao Ju
creator: Liule Wei
creator: Qiang Bi
creator: Yongwei Hu
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-11-24
publication date: 2025-11-24
starting page: 173
ending page: 185

Studying the structure and properties of quasi high-entropy alloys of the Fe-Co-Cr-Ni-Mn-Nb system with Mo additives
type: item
description: The paper presents the results of studying the structure, hardness and wear resistance of quasi high-entropy alloys of the Fe-Co-Cr-Ni-Mn-Nb system with Mo additives. As a result of the study, it was shown that quasi high-entropy alloys of the Fe-Cr-Mn-Ni-Co-Nb system smelted with partial use of ferroalloys and additionally alloyed with Mo in the amount of 5-15% by weight, demonstrated very system alloys without Mo additives. The structure of the studied samples is represented by a mixture of solid solutions of Mn, Fe, Co, Ni of the face-centered cubic typе (FCC), Nb and Mo of the body centered cubic type (BCC), as well as interstitial phases: a carbide phase, a Laves phase and a σ-phase.
subject: Original Scientific Paper
  topic: section
creator: Sv.S. Kvon
creator: V.Yu. Kulikov
creator: A.Z. Issagulov
creator: Saniya Arinova
creator: A.R. Abildina
rights: Copyright (c) 2025 Journal of Mining and Metallurgy, Section B: Metallurgy
date: 2025-07-31
publication date: 2025-07-31
starting page: 165
ending page: 172