JOM最新文献_第8页

Enhancing Microstructural Evolution and Mechanical Strength in Recycled AlSi7Mg Alloys Through Heat Treatment

IF 2.1 4区材料科学

JOM Pub Date : 2024-12-17 DOI: 10.1007/s11837-024-07061-9

Krystian Zyguła, Oleksandr Lypchanskyi, Wiktoria Skonieczna

{"title":"Enhancing Microstructural Evolution and Mechanical Strength in Recycled AlSi7Mg Alloys Through Heat Treatment","authors":"Krystian Zyguła, Oleksandr Lypchanskyi, Wiktoria Skonieczna","doi":"10.1007/s11837-024-07061-9","DOIUrl":"10.1007/s11837-024-07061-9","url":null,"abstract":"<div><p>This study investigates the microstructural evolution and mechanical properties of AlSi7Mg alloy, processed via hot compaction and hot extrusion of recycled chips. The influence of the T6 heat treatment on the microstructure and strength was comprehensively analyzed. Hot compaction of AlSi7Mg alloy chips resulted in a microstructure featuring quasi-continuous <i>β</i>-Si-phase precipitates along the grain boundaries of the primary <i>α</i>-Al-phase, with heterogenous distribution. Subsequent T6 heat treatment refined the microstructure, reducing <i>α</i>-phase grain size, and promoting more regular distribution of Si eutectics, while preserving Fe-rich precipitates. The detailed microstructure analysis for the hot-extruded and heat-treated alloy revealed an increase in the prevalence of larger angle grain boundaries after heat treatment, while Si precipitates exhibited uniform dispersion facilitated by the elevated temperature. The heat treatment had the expected effect, causing an increase in hardness after hot extrusion from 51.9 HV0.5 to 82.3 HV0.5, which was attributed to the precipitation-strengthening effect. Furthermore, the investigation of the influence of heat treatment on the compression strength of the extruded material revealed a 67% increase due to heat treatment from 307.1 MPa to 513.4 MPa. These findings highlight the role of microstructural control in enhancing the performance of recycled aluminum alloys, offering valuable insights into sustainable materials processing.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 3","pages":"1220 - 1232"},"PeriodicalIF":2.1,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of Cu-Matrix Composites Reinforced by ZTA Particles Through Spontaneous Infiltration and Evaluation of the Tribological Properties ZTA颗粒自渗增强cu基复合材料的制备及其摩擦学性能评价

IF 2.1 4区材料科学

JOM Pub Date : 2024-12-17 DOI: 10.1007/s11837-024-07038-8

Jianbo Zhang, Yihong Tian, Xiangqin Zhao, Jiaqing Lai, Qiao Chen, Shengda Guo

{"title":"Fabrication of Cu-Matrix Composites Reinforced by ZTA Particles Through Spontaneous Infiltration and Evaluation of the Tribological Properties","authors":"Jianbo Zhang, Yihong Tian, Xiangqin Zhao, Jiaqing Lai, Qiao Chen, Shengda Guo","doi":"10.1007/s11837-024-07038-8","DOIUrl":"10.1007/s11837-024-07038-8","url":null,"abstract":"<div><p>A dense bulk zirconia-toughened alumina (ZTA)-reinforced copper matrix composite with high particle content was fabricated by using a non-pressure infiltration method. The impact of different CuO content on the properties of ZTA/Cu matrix composites was investigated, and materials’ microstructure was analyzed. The results indicate that with a CuO content of 35 wt.%, the relative density, hardness, and electrical conductivity reached optimal values of 89.7%, 145.7 HV, and 16.2%IACS, respectively. Meanwhile, the friction coefficient and wear loss were 0.35 mm<sup>3</sup> and 0.059 mm<sup>3</sup>, reducing it by 57.4% and 20.4% compared with pure Cu. Additionally, variations in composite morphology were observed based on CuO content, as the incorporation of CuO led to the segregation of oxygen at the interface, which plays a critical role in reducing interfacial energy between the particles and the matrix, thereby improved wettability. These findings provide valuable insight into the potential use of non-pressure infiltration methods in producing high-density ZTA-reinforced copper matrix composites, offering a pathway toward enhanced mechanical and tribological performance.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 2","pages":"851 - 862"},"PeriodicalIF":2.1,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142995006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on High-Performance Gear Fatigue Life Prediction Method Based on Deep Learning Theories 基于深度学习理论的高性能齿轮疲劳寿命预测方法研究

IF 2.1 4区材料科学

JOM Pub Date : 2024-12-16 DOI: 10.1007/s11837-024-06952-1

Xingbin Chen, Yanxia Xu, Xilong Zhang, Yibing Yin

{"title":"Study on High-Performance Gear Fatigue Life Prediction Method Based on Deep Learning Theories","authors":"Xingbin Chen, Yanxia Xu, Xilong Zhang, Yibing Yin","doi":"10.1007/s11837-024-06952-1","DOIUrl":"10.1007/s11837-024-06952-1","url":null,"abstract":"<div><p>This paper studies fatigue application scenarios for high-performance gears and other mechanical components. It addresses the limitations of internal encapsulation detection and challenges of long-cycle tests. The paper proposes an intelligent prediction method for fatigue features, utilizing visual detection and accelerated degradation life. It integrates conventional test benches and environmental reliability accelerated test conditions, conducts in-depth research on fatigue life estimation algorithms, and explores the feasibility of employing deep learning algorithms and failure prediction models for fatigue life prediction. The paper also establishes an algorithmic system architecture that integrates and processes information from multiple systems and sensors, including gear fatigue performance driving and fatigue monitoring. This approach enables the rapid identification of early micro-motion fatigue characteristics, online autonomous detection, and intelligent failure estimation by integrating information from various systems and sensors. It can accurately predict fatigue degradation and provide a basis for adopting a rational anti-fatigue optimization design.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 1","pages":"61 - 75"},"PeriodicalIF":2.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142859626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical Study of Selective Laser Melted Inconel 718 Alloy Subjected to Varying Aging Durations

IF 2.1 4区材料科学

JOM Pub Date : 2024-12-16 DOI: 10.1007/s11837-024-07032-0

Abdelgadir M. Abdelgadir, Murtaza Siddiqui, Akeem Y. Adesina, Syed Sohail Akhtar

{"title":"Electrochemical Study of Selective Laser Melted Inconel 718 Alloy Subjected to Varying Aging Durations","authors":"Abdelgadir M. Abdelgadir, Murtaza Siddiqui, Akeem Y. Adesina, Syed Sohail Akhtar","doi":"10.1007/s11837-024-07032-0","DOIUrl":"10.1007/s11837-024-07032-0","url":null,"abstract":"<div><p>In this study, heat treatment with varying aging durations is applied on specimens produced by selective laser melting of pre-alloyed powder of Inconel 718 alloy (IN718) to evaluate the impact of aging duration on the microstructure and corrosion resistance. A two-stage aging procedure was adopted after homogenizing the samples at 1000°C for 1 h. The aging was initially done at 740°C for 8 h then cooled to 620°C and kept for 8 h, 15 h, 25 h, and 40 h in the second stage before finally being normalized under ambient conditions. The results revealed that corrosion resistance improved significantly with longer aging durations, with the 40-h aged sample exhibiting the highest resistance. The enhanced corrosion resistance is attributed to the precipitation of γ′ and γ″ phases. Pitting corrosion resistance increased with aging duration up to 15 h in the second stage, then slightly decreased because of overaging. Similarly, hardness declined slightly beyond 25 h of aging because of the transformation of γ′ and γ″ phases into the δ phase. This study emphasizes the need for precise control of aging durations to optimize corrosion resistance and mechanical properties.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 4","pages":"2028 - 2042"},"PeriodicalIF":2.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Heat Treatment and Aging on Microstructural and Mechanical Properties of RAFM Steel

IF 2.1 4区材料科学

JOM Pub Date : 2024-12-16 DOI: 10.1007/s11837-024-07031-1

Guo-xing Qiu, Hong-zhao Zhang, Jia-ning Li, Qi Li, Yong-kun Yang, Xiao-ming Li

{"title":"Effects of Heat Treatment and Aging on Microstructural and Mechanical Properties of RAFM Steel","authors":"Guo-xing Qiu, Hong-zhao Zhang, Jia-ning Li, Qi Li, Yong-kun Yang, Xiao-ming Li","doi":"10.1007/s11837-024-07031-1","DOIUrl":"10.1007/s11837-024-07031-1","url":null,"abstract":"<div><p>This study investigated the effects of normalizing and tempering on microstructures and mechanical properties of reduced activation ferritic/martensitic steel with Y and Zr. The thermal stability and mechanical properties of the steel, subjected to two normalizing and one tempering (intermediate) treatment, were examined during aging at 823 K for 5000 h. OM, SEM and TEM were employed to observe microstructures and precipitates. Hardness, tensile and impact properties were measured using a microhardness tester, electronic universal material testing machine and pendulum impact testing machine. The results show that the optimal treatment was identified at 1323 K × 30 min + 1193 K × 30 min, yielding strength of 642 MPa at room temperature (RT) and a ductile-brittle transition temperature (DBTT) of 193 K. When the tempering temperature was raised from 963 K to 1063 K, the yield strength of the steel decreased from 724 MPa to 504 MPa, elongation increased from 17.9% to 25.6%, and DBTT decreased from 228 K to 221 K. The intermediate treatment (1323 K × 30 min + 1193 K × 30 min + 1028 K × 90 min) resulted in fine carbides, enhancing mechanical properties. The steel was stabilized to martensite after aging for 5000 h at 823 K. The Laves phase content increased during the aging process and became stable after aging for 2500 h. The yield strength of the steel after aging for 5000 h was 638 MPa (RT) and 308 MPa (923 K), with an impact energy of 313 J at RT and a DBTT of 204 K. Initial fine grain and M<sub>23</sub>C<sub>6</sub>, pinning of Y-Zr-O and precipitation of Laves phases were responsible for good mechanical properties and microstructural stability of the alloy.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 4","pages":"2109 - 2120"},"PeriodicalIF":2.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Applying the Taguchi Method for Optimization of Cutting Parameters of Aluminum Alloy Using Novel Bio-Degradable Oil as a Lubricant 应用田口法优化新型生物可降解油作为润滑剂的铝合金切削参数

IF 2.1 4区材料科学

JOM Pub Date : 2024-12-16 DOI: 10.1007/s11837-024-07028-w

Hafiz Sarfraz Ahmad, Muhammad Salman Mustafa, Muhammad Tuoqeer Anwar, Muhammad Naveed, Arslan Ahmed, Atta ur Rehman Shah, Farrukh Arsalan Siddiqui, Naveed Husnain

{"title":"Applying the Taguchi Method for Optimization of Cutting Parameters of Aluminum Alloy Using Novel Bio-Degradable Oil as a Lubricant","authors":"Hafiz Sarfraz Ahmad, Muhammad Salman Mustafa, Muhammad Tuoqeer Anwar, Muhammad Naveed, Arslan Ahmed, Atta ur Rehman Shah, Farrukh Arsalan Siddiqui, Naveed Husnain","doi":"10.1007/s11837-024-07028-w","DOIUrl":"10.1007/s11837-024-07028-w","url":null,"abstract":"<div><p>The properties of cutting fluids play a critical role in lubricating and cooling in machining operations. This study describes the optimization of the cutting parameters (depth of cut, feed, and cutting speed) in a conventional lathe machine to reduce surface roughness of aluminum alloy 6061 by using a novel biodegradable oil as cutting fluid. The optimal cutting parameters for surface roughness in turning are determined by applying the Taguchi technique L-27 orthogonal array, and corresponding surface roughness is measured. Analysis of variance (ANOVA) results explained that feed is the most influential factor on surface roughness with a contribution of 29.67%, followed by speed, 24.82%, and coolant ratio, 22.86%, while the depth of cut makes the lowest contribution of 16.83%. The surface roughness is found at its lower level at a blend ratio of MO/CO 80/20%, then linearly increases at MO/CO of 90/10%, and the highest surface roughness is obtained when 100/00% mineral-based cutting oil is used as a coolant. The decrease in surface roughness is ascribed to the superior lubricating and cooling capabilities of castor oil. The confirmatory experimental value of surface roughness at the optimal setting is 0.202 µm, confirming the parameters’ optimization at this configuration.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 2","pages":"809 - 821"},"PeriodicalIF":2.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbothermic Smelting Reduction of Copper Slag for Fe and Cu Recovery Using Calcium Aluminate Refining Slag as the Modifier 以铝酸钙精炼渣为改性剂的铜渣碳热熔炼还原回收铁和铜

IF 2.1 4区材料科学

JOM Pub Date : 2024-12-16 DOI: 10.1007/s11837-024-07052-w

Xue-liang Yin, Bo Zhang, Hui-fang Wang, Xiang-wei Li, Qi Feng

{"title":"Carbothermic Smelting Reduction of Copper Slag for Fe and Cu Recovery Using Calcium Aluminate Refining Slag as the Modifier","authors":"Xue-liang Yin, Bo Zhang, Hui-fang Wang, Xiang-wei Li, Qi Feng","doi":"10.1007/s11837-024-07052-w","DOIUrl":"10.1007/s11837-024-07052-w","url":null,"abstract":"<div><p>CaO-Al<sub>2</sub>O<sub>3</sub>-based refining slag, as a low-cost and low-carbon alternative to lime, has been used as a modifier in the smelting reduction of copper slag. The influence of refining slag/copper slag mass ratio (RS/CS) on the reduction behavior, metal recovery, and slag–refractory interaction was studied through experimental and thermodynamic methods. The refining slag was well dissolved in copper slag during the reduction process at 1550°C, ensuring the slag's basicity and helping to depolymerize the silicate slag after FeO reduction. Only a few iron oxides were detected in the slag residue regardless of the RS/CS ratio, and, meanwhile, both the iron and copper recovery was over 97.5%. However, this achievement was made on the significant dissolution of MgO from the crucible when the RS/CS ratio was below 0.45. The MgO dissolution was dramatically suppressed at higher RS/CS ratios (> 0.45), contributing to the refractory protection. Moreover, the toxic elements in the slag have been substantially removed as vapors after smelting reduction, which ensures the cleanliness and safety of the slag.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 2","pages":"775 - 783"},"PeriodicalIF":2.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Rapid Sand Casting for High-Tech Application: A Review 快速砂型铸造在高新技术中的应用综述

IF 2.1 4区材料科学

JOM Pub Date : 2024-12-16 DOI: 10.1007/s11837-024-07036-w

Samson Dare Oguntuyi, Kasongo Nyembwe, Mxolisi Brendon Shongwe, Jonathan Kabasele, Tajudeen Mojisola

{"title":"Rapid Sand Casting for High-Tech Application: A Review","authors":"Samson Dare Oguntuyi, Kasongo Nyembwe, Mxolisi Brendon Shongwe, Jonathan Kabasele, Tajudeen Mojisola","doi":"10.1007/s11837-024-07036-w","DOIUrl":"10.1007/s11837-024-07036-w","url":null,"abstract":"<div><p>Prototyping is an application of additive manufacturing technique that has emerged as one of the leading techniques in parts manufacturing because of its high importance in fabricating cast products. One typical process in prototyping that has gained some prominence in the last few decades is the rapid sand casting (RSC) technique. RSC is a patternless method for creating sand molds and cores for casting. It has the advantages of producing different iterations of designs, inducing part consolidation, minimizing waste, promoting integrity and functionality, and reducing weight. All these consequently enhance lead times and minimize costs. Despite this importance, RSC has inconsistent properties, such as hardness, fracture toughness, tensile strength, surface finish, and dimensional accuracy in serially manufactured parts, these challenges have limited RSC uses and prominence in specific high-tech applications, such as aerospace, biomedical, automotive, etc. This review addresses solutions to the challenges of property inconsistencies, thereby making RSC suitable for high-tech applications. Furthermore, we explore the innovative approaches required for the RSC technique.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 2","pages":"935 - 947"},"PeriodicalIF":2.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phase Field Model for Solidification of Fe-Cr-C Ternary Alloys Based on KKS Model 基于KKS模型的Fe-Cr-C三元合金凝固相场模型

IF 2.1 4区材料科学

JOM Pub Date : 2024-12-12 DOI: 10.1007/s11837-024-07035-x

Ting Gao, Wanming Li, Bin Wang, Ximin Zang

{"title":"Phase Field Model for Solidification of Fe-Cr-C Ternary Alloys Based on KKS Model","authors":"Ting Gao, Wanming Li, Bin Wang, Ximin Zang","doi":"10.1007/s11837-024-07035-x","DOIUrl":"10.1007/s11837-024-07035-x","url":null,"abstract":"<div><p>The phase field method is an important method to study structural phase transition, dendrite growth, and material microstructure and phase transition behavior. The KKS model was used to study the microstructure formation mechanism and phase field equation establishment process of the KKS model in the solidification process of the ternary Fe-Cr-C alloy. Additionally, a new ternary phase field equation has been proposed and established, taking into account the solute free energy distribution of new elements. The micro-segregation of the Fe-Cr-C alloy has also been studied via a thin interface model of phase field theory, and the proposed model was applied. The increase of the Cr element caused the dispersion of ternary dendrite growth morphology and the slowing down of tip velocity. The simulation was verified by high-temperature confocal experiments. Under the influence of chromium diffusion, the dendritic arms were filled with Cr-C alloy. The undercooling conditions of the dendrites were set to 28 K, 29 K, 30 K, and 31 K in sequence, and the comparison of dendrite growth showed that, as the initial cooling temperature increased, the growth rate of the secondary dendrite arms increased, and the spacing between the secondary dendrite arms decreased.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 2","pages":"924 - 934"},"PeriodicalIF":2.1,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mineralogy of Magnetite Concentrate and Its Preparation for Ultra-pure Iron Concentrate 磁铁矿精矿矿物学及超纯铁精矿的制备

IF 2.1 4区材料科学

JOM Pub Date : 2024-12-11 DOI: 10.1007/s11837-024-07037-9

Chuan Dai, Pan Chen, Wei Sun

{"title":"Mineralogy of Magnetite Concentrate and Its Preparation for Ultra-pure Iron Concentrate","authors":"Chuan Dai, Pan Chen, Wei Sun","doi":"10.1007/s11837-024-07037-9","DOIUrl":"10.1007/s11837-024-07037-9","url":null,"abstract":"<div><p>A comprehensive investigation was undertaken on the mineralogy of ordinary magnetite concentrate to achieve ultra-pure iron concentrate. Various analytical methods, including chemical analysis, X-ray fluorescence spectroscopy, optical microscopy, scanning electron microscopy–energy dispersive X-ray spectroscopy (SEM-EDS), and mineral liberation analysis were employed. The analysis revealed that the ordinary magnetic concentrate had a TFe grade of 65.56%, accompanied by Al<sub>2</sub>O<sub>3</sub> and SiO<sub>2</sub> contents of 0.38% and 8.28%, respectively. The valuable mineral identified in the sample was magnetite, constituting 89.01%, exhibiting a liberation degree of 90.66%. The predominant gangue minerals, quartz and amphibole, exhibited low liberation degrees of 24.11% and 20.94%, respectively. Subsequently, a combined beneficiation process involving shaking table separation and reverse flotation was conducted. Experimental results demonstrated that ultra-pure concentrate with a TFe grade of 72.20% and recovery of 51.54% was obtained through one stage of shaking table separation, roughing flotation, and four cleaning flotation stages. The ultra-pure magnetite was further confirmed by XRD analysis, magnetic susceptibility measurement, and SEM-EDS analysis. The successful implementation of this process will provide a benchmark for producing similar ultra-pure magnetite concentrates.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 2","pages":"948 - 959"},"PeriodicalIF":2.1,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142994450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0