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Preheating-assisted solid-state friction stir repair of Al-Mg-Si alloy plate at different rotational speeds Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Hui Wang, Yidi Li, Ming Zhang, Wei Gong, Ruilin Lai, Yunping Li
Additive friction stir deposition (AFSD) is a novel structural repair and manufacturing technology has become a research hotspot at home and abroad in the past five years. In this work, the microstructural evolution and mechanical performance of the Al-Mg-Si alloy plate repaired by the preheating-assisted AFSD process were investigated. To evaluate the tool rotation speed and substrate preheating for
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Customization of FeNi alloy nanosheet arrays inserted with biomass-derived carbon templates for boosted electromagnetic wave absorption Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Xuanqi Yang, Honghan Wang, Jing Chen, Qingda An, Zuoyi Xiao, Jingai Hao, Shangru Zhai, Junye Sheng
Electromagnetic wave (EMW)-absorbing materials have considerable capacity in the military field and the prevention of EMW radiation from harming human health. However, obtaining lightweight, high-performance, and broadband EMW-absorbing material remains an overwhelming challenge. Creating dielectric/magnetic composites with customized structures is a strategy with great promise for the development
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Effects of conductive agent type on lithium extraction from salt lake brine with LiFePO4 electrodes Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Zhen Zhang, Pan Luo, Yan Zhang, Yuhan Wang, Li Liao, Bo Yu, Mingshan Wang, Junchen Chen, Bingshu Guo, Xing Li
Electrochemical lithium extraction from salt lakes is an effective strategy for obtaining lithium at a low cost. Nevertheless, the elevated Mg : Li ratio and the presence of numerous coexisting ions in salt lake brines give rise to challenges, such as prolonged lithium extraction periods, diminished lithium extraction efficiency, and considerable environmental pollution. In this work, LiFePO4 (LFP)
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Microstructures, corrosion behavior and mechanical properties of as-cast Mg-6Zn-2X(Fe/Cu/Ni) alloys for plugging tool applications Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Baosheng Liu, Jiali Wei, Shaohua Zhang, Yuezhong Zhang, Pengpeng Wu, Daqing Fang, Guorui Ma
Mg-6Zn-2X(Fe/Cu/Ni) alloys were prepared through semi-continuous casting, with the aim of identifying a degradable magnesium (Mg) alloy suitable for use in fracturing balls. A comparative analysis was conducted to assess the impacts of adding Cu and Ni, which result in finer grains and the formation of galvanic corrosion sites. Scanner electronic microscopy examination revealed that precipitated phases
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Extraction and recycling technologies of cobalt from primary and secondary resources: A comprehensive review Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Yukun Huang, Pengxu Chen, Xuanzhao Shu, Biao Fu, Weijun Peng, Jiang Liu, Yijun Cao, Xiaofeng Zhu
Cobalt has excellent electrochemical, magnetic, and heat properties. As a strategic resource, it has been applied in many high-tech products. However, the recent rapid growth of the battery industry has substantially depleted cobalt resources, leading to a crisis of cobalt resource supply. The paper examines cobalt ore reserves and distribution, and the recent development and consumption of cobalt
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Comparison of electrochemical behaviors of Ti-5Al-2Sn-4Zr-4Mo-2Cr-1Fe and Ti-6Al-4V titanium alloys in NaNO3 solution Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Jia Liu, Shuanglu Duan, Xiaokang Yue, Ningsong Qu
The Ti-5Al-2Sn-4Zr-4Mo-2Cr-1Fe (β-CEZ) alloy is considered as a potential structural material in the aviation industry due to its outstanding strength and corrosion resistance. Electrochemical machining (ECM) is an efficient and low-cost technology for manufacturing the β-CEZ alloy. In ECM, the machining parameter selection and tool design are based on the electrochemical dissolution behavior of the
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Selective leaching of lithium from spent lithium-ion batteries using sulfuric acid and oxalic acid Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Haijun Yu, Dongxing Wang, Shuai Rao, Lijuan Duan, Cairu Shao, Xiaohui Tu, Zhiyuan Ma, Hongyang Cao, Zhiqiang Liu
Traditional hydrometallurgical methods for recovering spent lithium-ion batteries (LIBs) involve acid leaching to simultaneously extract all valuable metals into the leachate. These methods usually are followed by a series of separation steps such as precipitation, extraction, and stripping to separate the individual valuable metals. In this study, we present a process for selectively leaching lithium
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Enhancing performance of low-temperature processed CsPbI2Br all-inorganic perovskite solar cells using polyethylene oxide-modified TiO2 Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Xu Zhao, Naitao Gao, Shengcheng Wu, Shaozhen Li, Sujuan Wu
CsPbX3-based (X = I, Br, Cl) inorganic perovskite solar cells (PSCs) prepared by low-temperature process have attracted much attention because of their low cost and excellent thermal stability. However, the high trap state density and serious charge recombination between low-temperature processed TiO2 film and inorganic perovskite layer interface seriously restrict the performance of all-inorganic
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Solid Bi2O3-derived nanostructured metallic bismuth with high formate selectivity for the electrocatalytic reduction of CO2 Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Xiaoyan Wang, Safeer Jan, Zhiyong Wang, Xianbo Jin
CO2 electrochemical reduction (CO2ER) is an important research area for carbon neutralization. However, available catalysts for CO2 reduction are still characterized by limited stability and activity. Recently, metallic bismuth (Bi) has emerged as a promising catalyst for CO2ER. Herein, we report the solid cathode electroreduction of commercial micronized Bi2O3 as a straightforward approach for the
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Porous TiFe2 intermetallic compound fabricated via elemental powder reactive synthesis Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Qian Zhao, Zhenli He, Yuehui He, Yue Qiu, Zhonghe Wang, Yao Jiang
Porous intermetallics show potential in the field of filtration and separation as well as in the field of catalysis. Herein, porous TiFe2 intermetallics were fabricated by the reactive synthesis of elemental powders. The phase transformation and pore formation of porous TiFe2 intermetallics were investigated, and its corrosion behavior and hydrogen evolution reaction (HER) performance in alkali solution
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Machine learning-assisted efficient design of Cu-based shape memory alloy with specific phase transition temperature Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Mengwei Wu, Wei Yong, Cunqin Fu, Chunmei Ma, Ruiping Liu
The martensitic transformation temperature is the basis for the application of shape memory alloys (SMAs), and the ability to quickly and accurately predict the transformation temperature of SMAs has very important practical significance. In this work, machine learning (ML) methods were utilized to accelerate the search for shape memory alloys with targeted properties (phase transition temperature)
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Reinforcing effects of polypropylene on energy absorption and fracturing of cement-based tailings backfill under impact loading Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Jiajian Li, Shuai Cao, Erol Yilmaz
Polypropylene (PP) fiber-reinforced cement-based tailings backfill (FRCTB) is a green compound material with superior crack resistance and has good prospects for application in underground mining. However, FRCTB exhibits susceptibility to dynamic events, such as impact ground pressure and blast vibrations. This paper investigates the energy and crack distribution behavior of FRCTB under dynamic impact
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Insights into the changes in the surface properties of goethite with Ni in the lattice in the presence of salicylhydroxamic acid: Experimental and density functional theory studies Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Levie Mweene, Gilsang Hong, Hee-Eun Jeong, Hee-won Kang, Hyunjung Kim
Comparative experiments and theoretical analysis of the surface chemistry changes of goethite (GT) and goethite containing Ni (GTN) in the lattice in the presence of salicylhydroxamic acid (SA) were performed. It was revealed that in the presence of 100 g·t−1 of SA, the flotation recovery of GTN and GT increased with increasing pH, achieving a maximum recovery of 98.9% for both minerals at pH 8.3 and
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Mechanism of microarc oxidation on AZ91D Mg alloy induced by β-Mg17Al12 phase Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Dajun Zhai, Xiaoping Li, Jun Shen
This work proposed a strategy of indirectly inducing uniform microarc discharge by controlling the content and distribution of β-Mg17Al12 phase in AZ91D Mg alloy. Two kinds of nano-particles (ZrO2 and TiO2) were designed to be added into the substrate of Mg alloy by friction stir processing (FSP). Then, Mg alloy sample designed with different precipitated morphology of β-Mg17Al12 phase was treated
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Neutral and metallic vs. charged and semiconducting surface layer in acceptor doped CeO2 Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-16 Ilan Riess
The monomolecular surface layer of acceptor doped CeO2 may become neutral and metallic or charged and semiconducting. This is revealed in the theoretical analysis of the oxygen pressure dependence of the surface defects concentration in acceptor doped ceria with two different dopant types and operated under different oxygen pressures. Recently published experimental data for highly reduced Sm0.2Ce0
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Establishment of NaLuF4:15%Tb-based low dose X-PDT agent and its application on efficient antitumor therapy Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Yi Tian, Zhiguang Fu, Xiaosheng Zhu, Chunjing Zhan, Jinwei Hu, Li Fan, Chaojun Song, Qian Yang, Yu Wang, Mei Shi
X-ray excited photodynamic therapy (X-PDT) is the bravo answer of photodynamic therapy (PDT) for deep-seated tumors, as it employs X-ray as the irradiation source to overcome the limitation of light penetration depth. However, high X-ray irradiation dose caused organ lesions and side effects became the major barrier to X-PDT application. To address this issue, this work employed a classical co-precipitation
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Effects of the initiation position on the damage and fracture characteristics of linear-charge blasting in rock Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Chenxi Ding, Renshu Yang, Xiao Guo, Zhe Sui, Chenglong Xiao, Liyun Yang
To study the effects of the initiation position on the damage and fracture characteristics of linear-charge blasting, blasting model experiments were conducted in this study using computed tomography scanning and three-dimensional reconstruction methods. The fractal damage theory was used to quantify the crack distribution and damage degree of sandstone specimens after blasting. The results showed
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Exploring the potential of olivine-containing copper–nickel slag for carbon dioxide mineralization in cementitious materials Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Qianqian Wang, Zequn Yao, Lijie Guo, Xiaodong Shen
Water-quenched copper-nickel metallurgical slag enriched with olivine minerals exhibits promising potential for the production of CO2-mineralized cementitious materials. In this work, copper-nickel slag-based cementitious material (CNCM) was synthesized by using different chemical activation methods to enhance its hydration reactivity and CO2 mineralization capacity. Different water curing ages and
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Enhanced recovery of high-purity Fe powder from iron-rich electrolytic manganese residue by slurry electrolysis Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Wenxing Cao, Jiancheng Shu, Jiaming Chen, Zihan Li, Songshan Zhou, Shushu Liao, Mengjun Chen, Yong Yang
Iron-rich electrolytic manganese residue (IREMR) is an industrial waste produced during the processing of electrolytic metal manganese, and it contains certain amounts of Fe and Mn resources and other heavy metals. In this study, the slurry electrolysis technique was used to recover high-purity Fe powder from IREMR. The effects of IREMR and H2SO4 mass ratio, current density, reaction temperature, and
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Role of tannin pretreatment in flotation separation of magnesite and dolomite Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Xiufeng Gong, Jin Yao, Jun Guo, Bin Yang, Haoran Sun, Wanzhong Yin, Yulian Wang, Yafeng Fu
Flotation separation of magnesite and its calcium-containing carbonate minerals is a difficult problem. Recently, new regulators have been proposed for magnesite flotation decalcification, although traditional regulators such as tannin, water glass, sodium carbonate, and sodium hexametaphosphate are more widely used in industry. However, they are rarely used as the main regulators in research because
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New process for treating boron-bearing iron ore by flash reduction coupled with magnetic separation Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Qipeng Bao, Lei Guo, Hong Yong Sohn, Haibin Zuo, Feng Liu, Yongliang Gao, Zhancheng Guo
Boron is an important industrial raw material often sourced from minerals containing different compounds that cocrystallize, which makes it difficult to separate the mineral phases through conventional beneficiation. This study proposed a new treatment called flash reduction-melting separation (FRMS) for boron-bearing iron concentrates. In this method, the concentrates were first flash-reduced at the
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Flotation separation of scheelite from calcite using luteolin as a novel depressant Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Xiaokang Li, Ying Zhang, Haiyang He, Yu Wu, Danyu Wu, Zhenhao Guan
This paper proposes luteolin (LUT) as a novel depressant for the flotation-based separation of scheelite and calcite in a sodium oleate (NaOL) system. The suitability of LUT as a calcite depressant is confirmed through micro-flotation testing. At pH = 9, with LUT concentration of 50 mg·L−1 and NaOL concentration of 50 mg·L−1, scheelite recovery reaches 80.3%. Calcite, on the other hand, exhibits a
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Diffusion and reaction mechanism of limestone and quartz in fluxed iron ore pellet roasting process Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Yufeng Guo, Jinlai Zhang, Shuai Wang, Jianjun Fan, Haokun Li, Feng Chen, Kuo Liu, Lingzhi Yang
The increase to the proportion of fluxed pellets in the blast furnace burden is a useful way to reduce the carbon emissions in the ironmaking process. In this study, the interaction between calcium carbonate and iron ore powder and the mineralization mechanism of fluxed iron ore pellet in the roasting process were investigated through diffusion couple experiments. Scanning electron microscopy with
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Prediction of lime utilization ratio of dephosphorization in BOF steelmaking based on online sequential extreme learning machine with forgetting mechanism Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Runhao Zhang, Jian Yang, Han Sun, Wenkui Yang
The machine learning models of multiple linear regression (MLR), support vector regression (SVR), and extreme learning machine (ELM) and the proposed ELM models of online sequential ELM (OS-ELM) and OS-ELM with forgetting mechanism (FOS-ELM) are applied in the prediction of the lime utilization ratio of dephosphorization in the basic oxygen furnace steelmaking process. The ELM model exhibites the best
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A functionalized activated carbon adsorbent prepared from waste amidoxime resin by modifying with H3PO4 and ZnCl2 and its excellent Cr(VI) adsorption Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Chunlin He, Yun Liu, Mingwei Qi, Zunzhang Liu, Yuezhou Wei, Toyohisa Fujita, Guifang Wang, Shaojian Ma, Wenchao Yang
With the application of resins in various fields, numerous waste resins that are difficult to treat have been produced. The industrial wastewater containing Cr(VI) has severely polluted soil and groundwater environments, thereby endangering human health. Therefore, in this paper, a novel functionalized mesoporous adsorbent PPR-Z was synthesized from waste amidoxime resin for adsorbing Cr(VI). The waste
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Constructing Al@C–Sn pellet anode without passivation layer for lithium-ion battery Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Kangzhe Cao, Sitian Wang, Yanan He, Jiahui Ma, Ziwei Yue, Huiqiao Liu
Al is considered as a promising lithium-ion battery (LIBs) anode materials owing to its high theoretical capacity and appropriate lithation/de-lithation potential. Unfortunately, its inevitable volume expansion causes the electrode structure instability, leading to poor cyclic stability. What’s worse, the natural Al2O3 layer on commercial Al pellets is always existed as a robust insulating barrier
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Recovery of Li, Ni, Co and Mn from spent lithium-ion batteries assisted by organic acids: Process optimization and leaching mechanism Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Liuyi Ren, Bo Liu, Shenxu Bao, Wei Ding, Yimin Zhang, Xiaochuan Hou, Chao Lin, Bo Chen
The proper recycling of spent lithium-ion batteries (LIBs) can promote the recovery and utilization of valuable resources, while also negative environmental effects resulting from the presence of toxic and hazardous substances. In this study, a new environmentally friendly hydro-metallurgical process was proposed for leaching lithium (Li), nickel (Ni), cobalt (Co), and manganese (Mn) from spent LIBs
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High-chromium vanadium–titanium magnetite all-pellet integrated burden optimization and softening–melting behavior based on flux pellets Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Bojian Chen, Tao Jiang, Jing Wen, Guangdong Yang, Tangxia Yu, Fengxiang Zhu, Peng Hu
High-chromium vanadium–titanium magnetite (HVTM) is a crucial polymetallic-associated resource to be developed. The all-pellet operation is a blast furnace trend that aims to reduce carbon dioxide emissions in the future. By referencing the production data of vanadium-titanium magnetite blast furnaces, this study explored the softening-melting behavior of high-chromium vanadium–titanium magnetite and
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Integrated high-performance and accurate shaping technology of low-cost powder metallurgy titanium alloys: A comprehensive review Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Xuemeng Gan, Shaofu Li, Shunyuan Xiao, Yafeng Yang
The practical engineering applications of powder metallurgy (PM) Ti alloys produced through cold compaction and pressure-less sintering are impeded by poor sintering densification, embrittlement caused by excessive O impurities, and severe sintering deformation resulting from the use of heterogeneous powder mixtures. This review presents a summary of our previous work on addressing the above challenges
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Microstructure and mechanical properties stability of pre-hardening treatment in Al–Cu alloys for pre-hardening forming process Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-04-04 Liping Tang, Pengfei Wei, Zhili Hu, Qiu Pang
The stability of the microstructure and mechanical properties of the pre-hardened sheets during the pre-hardening forming (PHF) process directly determines the quality of the formed components. The microstructure stability of the pre-hardened sheets was investigated by differential scanning calorimetry (DSC), transmission electron microscopy (TEM), and small angle X-ray scattering (SAXS), while the
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Mechanical behavior and response mechanism of porous metal structures manufactured by laser powder bed fusion under compressive loading Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-03-22 Xuanming Cai, Yang Hou, Wei Zhang, Zhiqiang Fan, Yubo Gao, Junyuan Wang, Heyang Sun, Zhujun Zhang, Wenshu Yang
AlSi10Mg porous protective structure often produces different damage forms under compressive loading, and these damage modes affect its protective function. In order to well meet the service requirements, there is an urgent need to comprehensively understand the mechanical behavior and response mechanism of AlSi10Mg porous structures under compressive loading. In this paper, AlSi10Mg porous structures
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Disturbance failure mechanism of highly stressed rock in deep excavation: Current status and prospects Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-03-21 Tao Wang, Weiwei Ye, Liyuan Liu, Kai Liu, Naisheng Jiang, Xianhui Feng
This article reviews the current status on the dynamic behavior of highly stressed rocks under disturbances. Firstly, the experimental apparatus, methods, and theories related to the disturbance dynamics of deep, high-stress rock are reviewed, followed by the introduction of scholars’ research on deep rock deformation and failure from an energy perspective. Subsequently, with a backdrop of high-stress
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Facile synthesis of composite polyferric magnesium–silicate–sulfate coagulant with enhanced performance in water and wastewater Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-03-14 Xiangtao Huo, Rongxia Chai, Lizheng Gou, Mei Zhang, Min Guo
The coagulation process is a widely applied technology in water and wastewater treatment. Novel composite polyferric magnesium–silicate–sulfate (PFMS) coagulants were synthesized using Na2SiO3·9H2O, Fe2(SO4)3, and MgSO4 as raw materials in this paper. The effects of aging time, Fe:Si:Mg, and OH:M molar ratios (M represents the metal ions) on the coagulation performance of the as-prepared PFMS were
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Review on the plastic instability of medium-Mn steels for identifying the formation mechanisms of Lüders and Portevin–Le Chatelier bands Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-03-08
Abstract Plastic instability, including both the discontinuous yielding and stress serrations, has been frequently observed during the tensile deformation of medium-Mn steels (MMnS) and has been intensively studied in recent years. Unfortunately, research results are controversial, and no consensus has been achieved regarding the topic. Here, we first summarize all the possible factors that affect
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Flow characteristics and hot workability of a typical low-alloy high-strength steel during multi-pass deformation Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 Mingjie Zhao, Lihong Jiang, Changmin Li, Liang Huang, Chaoyuan Sun, Jianjun Li, Zhenghua Guo
Heavy components of low-alloy high-strength (LAHS) steels are generally formed by multi-pass forging. It is necessary to explore the flow characteristics and hot workability of LAHS steels during the multi-pass forging process, which is beneficial to the formulation of actual processing parameters. In the study, the multi-pass hot compression experiments of a typical LAHS steel are carried out at a
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Structural and magnetic properties of micropolycrystalline cobalt thin films fabricated by direct current magnetron sputtering Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 Kerui Song, Zhou Li, Mei Fang, Zhu Xiao, Qian Lei
Pure cobalt (Co) thin films were fabricated by direct current magnetron sputtering, and the effects of sputtering power and pressure on the microstructure and electromagnetic properties of the films were investigated. As the sputtering power increases from 15 to 60 W, the Co thin films transition from an amorphous to a polycrystalline state, accompanied by an increase in the intercrystal pore width
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Prediction model for corrosion rate of low-alloy steels under atmospheric conditions using machine learning algorithms Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 Jingou Kuang, Zhilin Long
This work constructed a machine learning (ML) model to predict the atmospheric corrosion rate of low-alloy steels (LAS). The material properties of LAS, environmental factors, and exposure time were used as the input, while the corrosion rate as the output. 6 different ML algorithms were used to construct the proposed model. Through optimization and filtering, the eXtreme gradient boosting (XGBoost)
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Preferentially selective extraction of lithium from spent LiCoO2 cathodes by medium-temperature carbon reduction roasting Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 Daixiang Wei, Wei Wang, Longjin Jiang, Zhidong Chang, Hualei Zhou, Bin Dong, Dekun Gao, Minghui Zhang, Chaofan Wu
Lithium recovery from spent lithium-ion batteries (LIBs) have attracted extensive attention due to the skyrocketing price of lithium. The medium-temperature carbon reduction roasting was proposed to preferential selective extraction of lithium from spent Li-CoO2 (LCO) cathodes to overcome the incomplete recovery and loss of lithium during the recycling process. The LCO layered structure was destroyed
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Structural properties of residual carbon in coal gasification fine slag and their influence on flotation separation and resource utilization: A review Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 Rui Han, Anning Zhou, Ningning Zhang, Kaiqiang Guo, Mengyan Cheng, Heng Chen, Cuicui Li
Coal gasification fine slag (FS) is a typical solid waste generated in coal gasification. Its current disposal methods of stockpiling and landfilling have caused serious soil and ecological hazards. Separation recovery and the high-value utilization of residual carbon (RC) in FS are the keys to realizing the win-win situation of the coal chemical industry in terms of economic and environmental benefits
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Progress in the research on organic piezoelectric catalysts for dye decomposition Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 Zhaoning Yang, Xiaoxin Shu, Di Guo, Jing Wang, Hui Bian, Yanmin Jia
Organic contaminants have posed a direct and substantial risk to human wellness and the environment. In recent years, piezoelectric catalysis has evolved as a novel and effective method for decomposing these contaminants. Although piezoelectric materials offer a wide range of options, most related studies thus far have focused on inorganic materials and have paid little attention to organic materials
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Effects of iron oxide on crystallization behavior and spatial distribution of spinel in stainless steel slag Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 Zihang Yan, Qing Zhao, Chengzhi Han, Xiaohui Mei, Chengjun Liu, Maofa Jiang
Chromium plays a vital role in stainless steel due to its ability to improve the corrosion resistance of the latter. However, the release of chromium from stainless steel slag (SSS) during SSS stockpiling causes detrimental environmental issues. To prevent chromium pollution, the effects of iron oxide on crystallization behavior and spatial distribution of spinel were investigated in this work. The
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Cross-upgrading of biomass hydrothermal carbonization and pyrolysis for high quality blast furnace injection fuel production: Physicochemical characteristics and gasification kinetics analysis Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 Han Dang, Runsheng Xu, Jianliang Zhang, Mingyong Wang, Jinhua Li
The paper proposes a biomass cross-upgrading process that combines hydrothermal carbonization and pyrolysis to produce high-quality blast furnace injection fuel. The results showed that after upgrading, the volatile content of biochar ranged from 16.19% to 45.35%, and the alkali metal content, ash content, and specific surface area were significantly reduced. The optimal route for biochar production
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Effect of solidification cooling rate on microstructure and tribology characteristics of Zn-4Si alloy Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 F. Akbari, M. Golkaram, S. Beyrami, G. Shirazi, K. Mantashloo, R. Taghiabadi, M. Saghafi Yazdi, I. Ansarian
The main objective of this work was to modify the microstructure and enhance the tribological properties of a new Zn-4Si alloy through a high solidification cooling rate (SCR). According to the results, by increasing the SCR from 2.0 to 59.5°C/s the average size of primary Si particles and that of the grains reduced from 76.1 and 3780 µm to less than about 14.6 and 460 µm, respectively. Augmenting
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Effect of titanium on the sticking of pellets based on hydrogen metallurgy shaft furnace: Behavior analysis and mechanism evolution Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 Jinge Feng, Jue Tang, Zichuan Zhao, Mansheng Chu, Aijun Zheng, Xiaobing Li, Xiao’ai Wang
Direct reduction based on hydrogen metallurgical gas-based shaft furnace is a promising technology for the efficient and low-carbon smelting of vanadium–titanium magnetite. However, in this process, the sticking of pellets occurs due to the aggregation of metallic iron between the contact surfaces of adjacent pellets and has a serious negative effect on the continuous operation. This paper presents
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Ferric ion-triggered surface oxidation of galena for efficient chalcopyrite-galena separation Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 Qiancheng Zhang, Limin Zhang, Feng Jiang, Honghu Tang, Li Wang, Wei Sun
The efficient separation of chalcopyrite (CuFeS2) and galena (PbS) is essential for optimal resource utilization. However, finding a selective depressant that is environmentally friendly and cost effective remains a challenge. Through various techniques, such as microflotation tests, Fourier transform infrared spectroscopy, scanning electron microscopy (SEM) observation, X-ray photoelectron spectroscopy
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Effect of Ni content on the wear behavior of Al-Si-Cu-Mg-Ni/SiC particles composites Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-17 Yanyu Liu, Lina Jia, Wenbo Wang, Zuheng Jin, Hu Zhang
In recent years, the addition of Ni has been widely acknowledged to be capable of enhancing the mechanical properties of Al-Si alloys. However, the effect of Ni on the wear behaviors of Al-Si alloys and Al matrix composites, particularly at elevated temperatures, remains an understudied area. In this study, Al-Si-Cu-Mg-Ni/20wt% SiC particles (SiCp) composites with varying Ni contents were prepared
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Recent progresses in the development of tubular segmented-in-series solid oxide fuel cells: Experimental and numerical study Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-07 Shuo Han, Tao Wei, Sijia Wang, Yanlong Zhu, Xingtong Guo, Liang He, Xiongzhuang Li, Qing Huang, Daifen Chen
Solid oxide fuel cells (SOFCs) have attracted a great deal of interest because they have the highest efficiency without using any noble metal as catalysts among all the fuel cell technologies. However, traditional SOFCs suffer from having a higher volume, current leakage, complex connections, and difficulty in gas sealing. To solve these problems, Rolls-Royce has fabricated a simple design by stacking
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Numerical investigation of sinusoidal pulsating gas intake to intensify the gas-slag momentum transfer in the top-blown smelting furnace Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-01
Abstract The variation characteristics of bubble morphology and the thermal-physical properties of bubble boundary in the top-blown smelting furnace were explored by means of the computational fluid dynamics method. The essential aspects of the fluid phase (e.g., splashing volume, dead zone of copper slag, and gas penetration depth) were explored together with the effect of sinusoidal pulsating gas
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Lattice Boltzmann simulation study of anode degradation in solid oxide fuel cells during the initial aging process Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-01
Abstract For present solid oxide fuel cells (SOFCs), rapid performance degradation is observed in the initial aging process, and the discussion of the degradation mechanism necessitates quantitative analysis. Herein, focused ion beam-scanning electron microscopy was employed to characterize and reconstruct the ceramic microstructures of SOFC anodes. The lattice Boltzmann method (LBM) simulation of
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Effect of Ti and Ta content on the oxidation resistance of Co-Ni-based superalloys Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-01
Abstract Co-Ni-based superalloys are known for their capability to function at elevated temperatures and superior hot corrosion and thermal fatigue resistance. Therefore, these alloys show potential as crucial high-temperature structural materials for aeroengine and gas turbine hot-end components. Our previous work elucidated the influence of Ti and Ta on the high-temperature mechanical properties
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Recent progress on Sn3O4 nanomaterials for photocatalytic applications Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-02-01
Abstract Tin(IV) oxide (Sn3O4) is layered tin and exhibits mixed valence states. It has emerged as a highly promising visible-light pho-tocatalyst, attracting considerable attention. This comprehensive review is aimed at providing a detailed overview of the latest advancements in research, applications, advantages, and challenges associated with Sn3O4 photocatalytic nanomaterials. The fundamental concepts
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Dual-ion carrier storage through Mg2+ addition for high-energy and long-life zinc-ion hybrid capacitor Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-01-26 Junjie Zhang, Xiang Wu
Cation additives can efficiently enhance the total electrochemical capabilities of zinc-ion hybrid capacitors (ZHCs). However, their energy storage mechanisms in zinc-based systems are still under debate. Herein, we modulate the electrolyte and achieve dual-ion storage by adding magnesium ions. And we assemble several Zn//activated carbon devices with different electrolyte concentrations and investigate
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Metal-to-insulator transitions in 3d-band correlated oxides containing Fe compositions Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-01-26 Yiping Yu, Yuchen Cui, Jiangang He, Wei Mao, Jikun Chen
Metal-to-insulator transitions (MITs), which are achieved in 3d-band correlated transitional metal oxides, trigger abrupt variations in electrical, optical, and/or magnetic properties beyond those of conventional semiconductors. Among such material families, iron (Fe: 3d64s2)-containing oxides pique interest owing to their widely tunable MIT properties, which are associated with the various valence
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Precise regulation of the phase transformation for pyrolusite during the reduction roasting process Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-01-26 Ruofeng Wang, Peng Gao, Shuai Yuan, Yanjun Li, Yingzhi Liu, Cheng Huang
The mechanism involved in the phase transformation process of pyrolusite (MnO2) during roasting in a reducing atmosphere was systematically elucidated in this study, with the aim of effectively using low-grade complex manganese ore resources. According to single-factor experiment results, the roasted product with a divalent manganese (Mn2+) distribution rate of 95.30% was obtained at a roasting time
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Hybrid model for BOF oxygen blowing time prediction based on oxygen balance mechanism and deep neural network Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-01-26 Xin Shao, Qing Liu, Zicheng Xin, Jiangshan Zhang, Tao Zhou, Shaoshuai Li
The amount of oxygen blown into the converter is one of the key parameters for the control of the converter blowing process, which directly affects the tap-to-tap time of converter. In this study, a hybrid model based on oxygen balance mechanism (OBM) and deep neural network (DNN) was established for predicting oxygen blowing time in converter. A three-step method was utilized in the hybrid model.
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Preparation of sodium molybdate from molybdenum concentrate by microwave roasting and alkali leaching Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-01-26 Fengjuan Zhang, Chenhui Liu, Srinivasakannan Chandrasekar, Yingwei Li, Fuchang Xu
The preparation process of sodium molybdate has the disadvantages of high energy consumption, low thermal efficiency, and high raw material requirement of molybdenum trioxide, in order to realize the green and efficient development of molybdenum concentrate resources, this paper proposes a new process for efficient recovery of molybdenum from molybdenum concentrate and preparation of sodium molybdate
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Prediction of the thermal conductivity of Mg-Al-La alloys by CALPHAD method Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-01-26 Hongxia Li, Wenjun Xu, Yufei Zhang, Shenglan Yang, Lijun Zhang, Bin Liu, Qun Luo, Qian Li
Mg−Al alloys have excellent strength and ductility but relatively low thermal conductivity due to Al addition. The accurate prediction of thermal conductivity is a prerequisite for designing Mg−Al alloys with high thermal conductivity. Thus, databases for predicting temperature- and composition-dependent thermal conductivities must be established. In this study, Mg−Al−La alloys with different contents
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Alkyl dimethyl betaine activates the low-temperature collection capacity of sodium oleate for scheelite Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-01-26 Xu Wang, Zhengquan Zhang, Yanfang Cui, Wei Li, Congren Yang, Hao Song, Wenqing Qin, Fen Jiao
The impact of alkyl dimethyl betaine (ADB) on the collection capacity of sodium oleate (NaOl) at low temperatures was evaluated using flotation tests at various scales. The low-temperature synergistic mechanism of ADB and NaOl was explored by infrared spectroscopy, X-ray photoelectron spectroscopy, surface tension measurement, foam performance test, and flotation reagent size measurement. The flotation
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High corrosion and wear resistant electroless Ni-P gradient coatings on aviation aluminum alloy parts Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-01-26 Bo Wang, Jiawei Li, Zhihui Xie, Gengjie Wang, Gang Yu
A Ni-P alloy gradient coating consisting of multiple electroless Ni-P layers with various phosphorus contents was prepared on the aviation aluminum alloy. Several characterization and electrochemical techniques were used to characterize the different Ni-P coatings’ morphologies, phase structures, elemental compositions, and corrosion protection. The gradient coating showed good adhesion and high corrosion
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Paraffin–CaCl2·6H2O dosage effects on the strength and heat transfer characteristics of cemented tailings backfill Int. J. Miner. Metall. Mater. (IF 4.8) Pub Date : 2024-01-26 Hai Li, Aibing Jin, Shuaijun Chen, Yiqing Zhao, You Ju
The challenge of high temperatures in deep mining remains harmful to the health of workers and their production efficiency. The addition of phase change materials (PCMs) to filling slurry and the use of the cold storage function of these materials to reduce downhole temperatures is an effective approach to alleviate the aforementioned problem. Paraffin–CaCl2·6H2O composite PCM was prepared in the laboratory