Journal of Mining and Metallurgy Section B-Metallurgy最新文献_第4页

Enhancing the density of silicon carbide with the addition of nitrate-based additives 添加硝酸盐基添加剂提高碳化硅的密度

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb220215020d

M. Dioktyanto, D. Aryanto, A. Noviyanto, A. H. Yuwono, N. Rochman

引用次数: 0

Phase equilibria of Bi-Te-RE (Yb,Nd,Sm,Er,Tb) ternary systems at 673K 673K时Bi-Te-RE (Yb,Nd,Sm,Er,Tb)三元体系的相平衡

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb211118007z

L.-G. Zhang, Q. Song, M. Tan, Y. Jiang, L.-B. Liu

{"title":"Phase equilibria of Bi-Te-RE (Yb,Nd,Sm,Er,Tb) ternary systems at 673K","authors":"L.-G. Zhang, Q. Song, M. Tan, Y. Jiang, L.-B. Liu","doi":"10.2298/jmmb211118007z","DOIUrl":"https://doi.org/10.2298/jmmb211118007z","url":null,"abstract":"The phase equilibria of Bi-Te-RE (Yb, Nd, Sm, Er, Tb) at 673K were established through equilibrated alloys, the isothermal sections of Bi-Te-RE (Yb, Nd, Sm, Er, Tb) at 673K were established according to the result of Scanning Electron Microscopy (SEM), Electron probe micro-analysis (EPMA) and Powder X-ray diffractometry (XRD). In the Bi-Te-Yb system at 673 K, the existence of 4 three-phase equilibria (YbTe+Bi2Te3+Te, YbTe+Bi2Te3+?, YbTe+Bi+?, YbTe+Yb5Bi3+Yb4Bi3) has been established, while 3 three-phase regions (NdTe2+?+Bi2Te3, NdTe2+?+Bi, Nd2Te3+Bi+BiTeNd) in Bi-Te-Nd system, 3 three-phase regions (SmTe3+Te+Bi2Te3, SmTe1.8+ Bi2Te3+?, SmTe1.8+?+Bi) in Bi-Te-Nd system, 3 three-phase regions (TbTe3+Te+Bi2Te3, Tb4Te7+Bi2Te3+?, TbTe+Bi+?) in Bi-Te-Nd system, and 4 three-phase regions (ErTe3+Te+Bi2Te3, ErTe3+Bi2Te3+Er2Te3, Bi2Te3+Er2Te3+?, Er2Te3+?+ErTe, ?+ErTe+Bi) in Bi-Te-Nd system have also been identified respectively. Among the Bi-Te-RE (Nd, Sm, Er, Tb, Yb) systems, the solubilities of RE in Bi2Te3 are 0.19 at % Nd, 0.22 at % Sm, 0.28 at % Tb, 0.35 at %Er, and 0.37 at % Yb. In general, the maximum solubility of elements in Bi2Te3 phase alloy become more and more larger with the increase in RE atomic number. A ternary compound BiTeNd in the Bi-Te-Nd ternary system was confirmed in this work.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"336 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75931574","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: 1

Interdiffusion coefficient and atomic mobility for fcc Ag-Cu-Mg phase at 1073 K 1073 K时fcc Ag-Cu-Mg相的相互扩散系数和原子迁移率

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb220926029d

Changfa Du, S.-P. Huang, Qianhui Min, Y. Liu, Shiyu Wen

引用次数: 0

Desulfurization of molten steel with molten slag using the electrochemical method 用电化学法用熔渣脱硫钢液

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb211014012w

X-Q Wu, J.-F. Xu, Py Gu, J.-Y. Zhang

引用次数: 1

Effect of FeO content on melting characteristics and structure of nickel slag FeO含量对镍渣熔炼特性及组织的影响

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb220317024m

Y.T. Ma, P. Yang, Bo Lu, Yicheng Dou, Jianke Tian, W.-B. Guo, Z. Zhang, Yingying Shen

{"title":"Effect of FeO content on melting characteristics and structure of nickel slag","authors":"Y.T. Ma, P. Yang, Bo Lu, Yicheng Dou, Jianke Tian, W.-B. Guo, Z. Zhang, Yingying Shen","doi":"10.2298/jmmb220317024m","DOIUrl":"https://doi.org/10.2298/jmmb220317024m","url":null,"abstract":"A great deal of nickel slag containing a lot of Fe in the form of FeO is produced in the process of nickel smelting. The effect of FeO content on the melting characteristics and structure of nickel slag is studied via thermodynamic calculation and experiments, with the nickel slag of water quenching furnace as raw material, which is simplified to CaO-SiO2-FeO-MgO slag system. The results are shown as follows: with the increasing of FeO content, the precipitated primary phase changes from melilite to olivine. The liquidus temperature, softening temperature, hemispheric temperature, flow temperature, viscosity and critical viscosity temperature of slag system tends to decrease gradually, but the solid phase temperature tends to decrease first and then increase. The centre of [SiO4]4- tetrahedron symmetric stretching vibration band in the slag system moves to the low wave number region. The mole fraction of O0 in the slag decreases continuously, the mole fraction of O- and O2- increases. The complex silicon-oxygen tetrahedron structure gradually disintegrates and the structural unit tends to be simple.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"46 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81106727","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: 1

Microstructures and tensile properties of Mg-2Zn-0.8Sr-0.2Ca alloy extruded at relatively slow speed and low temperature 慢速低温挤压Mg-2Zn-0.8Sr-0.2Ca合金的组织与拉伸性能

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb210325004y

A. Yang, K. Nie, K. Deng, J. Han, Tao Xiao, X.Z. Han

{"title":"Microstructures and tensile properties of Mg-2Zn-0.8Sr-0.2Ca alloy extruded at relatively slow speed and low temperature","authors":"A. Yang, K. Nie, K. Deng, J. Han, Tao Xiao, X.Z. Han","doi":"10.2298/jmmb210325004y","DOIUrl":"https://doi.org/10.2298/jmmb210325004y","url":null,"abstract":"In this work, a new Mg-2Zn-0.8Sr-0.2Ca alloy with low content of alloying elements was subjected to extrusion at relatively low-temperatures (240 and 200?C) and slow-speed (1.0 mm/s and 0.1 mm/s). The average size and volume fraction of recrystallized grains in the extruded Mg-2Zn-0.8Sr-0.2Ca alloy gradually decreased with the reduction in extrusion rate or extrusion temperature. Some broken second phases including Ca2Mg6Zn3 and Mg17Sr2 appeared in the extruded Mg-2Zn-0.8Sr-0.2Ca alloy along with some precipitated nano-sized MgZn2 phases. The volume fraction of MgZn2 phases gradually in the alloy increased as extrusion rate or temperature decreased. High performance with yield strength of 393.1 MPa, ultimate tensile strength of 418.4 MPa and the elongation of 5.7% was obtained in the Mg-2Zn- 0.8Sr-0.2Ca alloy extruded at 200?C & 0.1 mm/s. The main strengthening mechanisms could be attributed to grain-boundary strengthening, dislocation strengthening, precipitation strengthening, which were related to the change in grain size, second phases and basal texture intensity for the extruded Mg-2Zn-0.8Sr-0.2Ca alloy.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"12 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85897619","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

Improvement of modeling on the Ppidgeon process for magnesium production by introducing the variable thermophysical properties 通过引入可变热物性对Ppidgeon制镁过程建模进行改进

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb220111026l

R. Li, C. Wang, Z. Wang, Peixu Yang, F. Xue, Feng Liu, S.-J. Zhang

{"title":"Improvement of modeling on the Ppidgeon process for magnesium production by introducing the variable thermophysical properties","authors":"R. Li, C. Wang, Z. Wang, Peixu Yang, F. Xue, Feng Liu, S.-J. Zhang","doi":"10.2298/jmmb220111026l","DOIUrl":"https://doi.org/10.2298/jmmb220111026l","url":null,"abstract":"The variable thermophysical properties was introduced in the coupling model of heat transfer and reduction reaction in the Pidgeon process to improve the accuracy of numerical calculation. The distribution of temperature and magnesium reduction extent in the briquette layer, and overall magnesium reduction extent in the retort was investigated. The model results show a better agreement with those of industrial production. The characteristic of ?Layer Shift? in the briquette layer during reduction process was clearly presented. It was shown that the reduction reaction occurs only a thin interface. The slag layer producing in the reduction with lower thermal conductivity of 0.4 W?m-1?K-1 greatly impedes the reaction to move forward inside layers, resulting into the slow magnesium production rate in the Pidgeon process. The improved model can provide a more accurate quantitative prediction in magnesium reduction in the Pidgeon process, which is of significance in innovation of key equipment and development of new magnesium production techniques.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"5 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87765777","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

Characterizations and growth kinetics of the borided layer formed on pure nickel by molten salt electrolysis 熔盐电解纯镍渗硼层的表征及生长动力学

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb211101003w

B.X. Wang, W. Yuan, Z. Wang, J. Li, Hong-zhou Ma, Y. Song

{"title":"Characterizations and growth kinetics of the borided layer formed on pure nickel by molten salt electrolysis","authors":"B.X. Wang, W. Yuan, Z. Wang, J. Li, Hong-zhou Ma, Y. Song","doi":"10.2298/jmmb211101003w","DOIUrl":"https://doi.org/10.2298/jmmb211101003w","url":null,"abstract":"Molten salt electrolysis was applied for the boronizing of nickel with Na2B4O7?10H2O-Na2CO3 as the electrolyte and characterizations and the growth kinetics of borided layer is reported. The experiment was carried out in silicon carbide crucible at 1193 K, 1223 K and 1243 K for 1 h, 2 h, 3 h and 4 h. The morphology and phases formed on the surface of pure nickel were analyzed by means of scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and X-ray diffraction analysis (XRD). The surface hardness and corrosion resistance of the boronized sample were tested by micro hardness tester and electrochemical workstation respectively. The borided layer was composed of nickel borides and its thickness ranged from 71 to 184 ?m. After 1 h boronizing, the hardness of the silicon rich borides is 966 HK, which is a little lower than that of the nickel borides (992-1008 HK); the surface hardness reached 1755 HK after 4 h electrolysis. Electrochemical impedance spectroscopy analysis showed that the corrosion resistance of boronized sample is better than that of pure nickel. Borided layer growth kinetics was studied by analyzing the relationship between thickness of the borided layer and time by mathematical method. Then the diffusion coefficient constant of boron atom in nickel at 1193 K, 1223 K and 1243 K was calculated accordingly and an equation was obtained to estimate the thickness of the borided layer.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"29 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86739589","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

Use of ferric salt solutions as leaching agents of Co, Ni, Cu, Fe, and Mn from metallic alloys of spent lithium-ion batteries and separation of iron from the leaching solution 用铁盐溶液作为浸出剂，从废锂离子电池的金属合金中浸出Co、Ni、Cu、Fe和Mn，并从浸出液中分离出铁

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb220311023t

T. T. Tran, M.S. Lee

{"title":"Use of ferric salt solutions as leaching agents of Co, Ni, Cu, Fe, and Mn from metallic alloys of spent lithium-ion batteries and separation of iron from the leaching solution","authors":"T. T. Tran, M.S. Lee","doi":"10.2298/jmmb220311023t","DOIUrl":"https://doi.org/10.2298/jmmb220311023t","url":null,"abstract":"Smelting reduction of spent lithium-ion batteries (LIBs) results in metallic alloys containing Co, Ni, Cu, Fe and Mn. Dissolution of the valuable metals present in the metallic alloys is necessary to recover them. In this work, the mixture of Fe2(SO4)3 and FeSO4, single Fe2(SO4) and FeCl3 solutions were employed as leaching agents and the effects of parameters like ferric salt concentration, reaction temperature and time, and pulp density on the leaching of the metals were studied. The difference in the leaching percentage of the metals by the nature of the ferric solutions was insignificant. In these leaching systems, ferric and hydrogen ions act as oxidizing agents and sulfate/bisulfate and chloride anions as ligands. Optimum conditions for the complete leaching of metals by single ferric solutions were 0.35 mol/L Fe2(SO4)3 or 0.7 mol/L FeCl3 with 12.5 g/L pulp density for 60 min at 22oC. Addition of H2O2 to the leaching solution for the oxidation of Fe(II) to Fe(III) enhanced the selective extraction of iron over Co(II), Ni(II), Cu(II), Mn(II) and Si(IV) by D2EHPA. Stripping of iron from the loaded D2EHPA with aqua regia resulted in a pure iron solution. Compared to HCl and H2SO4 solutions, use of single ferric solution showed some advantages like fast reaction kinetics at 22oC and the reduction in dosage of acids and oxidizing agents.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"14 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74929210","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: 2

Functionally graded AZ91/WC nanocomposite fabricated via friction stir processing using a novel way 采用搅拌摩擦法制备了功能梯度AZ91/WC纳米复合材料

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb220322018s

A. Subhi, M. Abdulkareem, H. Hussein

{"title":"Functionally graded AZ91/WC nanocomposite fabricated via friction stir processing using a novel way","authors":"A. Subhi, M. Abdulkareem, H. Hussein","doi":"10.2298/jmmb220322018s","DOIUrl":"https://doi.org/10.2298/jmmb220322018s","url":null,"abstract":"In this work, functionally graded AZ91/WC nanocomposites were produced by a novel multi-stage reduction of chamber diameter method. The WC nanoparticles were packed in chambers having graduated diameters and friction stir processing was applied using tool with four-sided fluted probe. The functionally graded nanocomposites were obtained using different tool rotational speeds (830, 960 and 1160 rpm) with a constant traverse speed and plunge depth of 40 mm/min and 0.1 mm, respectively. The characteristics of the functionally graded samples and AZ91 Mg alloy were evaluated utilizing optical and scanning electron microscopes, and energy dispersive spectroscopy as well as other tests such as hardness, pin on disc wear and potentiodynamic polarization tests. The results showed that ?-Mg refining and graded distribution of WC nanoparticles were enhanced with augmenting tool rotational speed. The hardness increased slightly with augmenting tool rotational speed. The results also revealed that the wear rate was decreased and corrosion resistance was improved by adding WC nanoparticles. Abrasive wear mode was the main mode of material removal during dry sliding while cracks and pits were the main features of corroded surface.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"88 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73778727","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