Journal of Mining and Metallurgy Section B-Metallurgy最新文献_第3页

Ab-initio combined the Calphad approach to the phase equilibria in the ternary Ti-Mo-N system Ab-initio结合calphhad方法求解三元Ti-Mo-N体系的相平衡

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2023-01-01 DOI: 10.2298/jmmb210330011d

R. Daclan, M. Mena, M. Vasquez, W. Gierlotka

引用次数: 0

Effect of laser hardening on the mechanical, tribological and corrosion properties of low alloy steels 激光硬化对低合金钢力学、摩擦学和腐蚀性能的影响

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2023-01-01 DOI: 10.2298/jmmb230209022a

O. Albahlol, H. Çuğ, Y. Akgul, A. K. Eticha, A. Incesu

引用次数: 0

Hot deformation behavior of micro-alloyed steel using processing maps developed with different constitutive equations 利用不同本构方程的加工图研究微合金钢的热变形行为

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb220114014t

S. Thakur, A. Das, B. Jha

{"title":"Hot deformation behavior of micro-alloyed steel using processing maps developed with different constitutive equations","authors":"S. Thakur, A. Das, B. Jha","doi":"10.2298/jmmb220114014t","DOIUrl":"https://doi.org/10.2298/jmmb220114014t","url":null,"abstract":"The hot workability of microalloyed steel was studied in the deformation temperature range of 850-1200oC and strain rate of 0.001-100s-1. The constitutive relation of flow stress with temperature, strain rate and strain was established to construct processing maps of the microalloyed steel. The processing maps were constructed using conventional power law, integral method and Arrhenius equations. The developed processing maps were used to predict the optimal hot deformation conditions and validated with metallurgical examinations. The safe regime for hot working of the experimental steel was found to be in the intermediate temperature-strain rate range (1000-1150oC- 0.001-10 s-1), where the deformation process is dominated by dynamic recrystallization and dynamic recovery of the austenitic phase. The processing map constructed using Arrhenius equations increases continuously with an increase in deformation temperature and decrease in strain rate and does not reveal relevant information of hot workability with respect to deformation temperature and strain rate. The dynamic recrystallization behavior of experimental steel was affected by both deformation temperature and strain rate which is explained in detail through microstructural examination.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77938728","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

The effect of precious metals in the NiAl coating on the oxidation resistance of the Inconel 713 superalloy NiAl涂层中贵金属含量对Inconel 713高温合金抗氧化性能的影响

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb220427011z

M. Zagula-Yavorska, J. Romanowska

引用次数: 1

Effect of coiling temperature on the structure and properties of thermo-mechanically rolled S700MC steel 卷取温度对热机械轧制S700MC钢组织和性能的影响

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb220304028o

S. Oktay, Nunzio di, M. Cesile, K. Davut, M. Şeşen

{"title":"Effect of coiling temperature on the structure and properties of thermo-mechanically rolled S700MC steel","authors":"S. Oktay, Nunzio di, M. Cesile, K. Davut, M. Şeşen","doi":"10.2298/jmmb220304028o","DOIUrl":"https://doi.org/10.2298/jmmb220304028o","url":null,"abstract":"Boron-free S700MC steel is usually produced exploiting the properties of a ferrite-bainite mixed microstructure formed by coiling the strips at a temperature of about 450?C, namely below the bainite start temperature. Aiming at further enhancing the mechanical properties for 6 to 10 mm thick strips, industrial trials with a coiling temperature of 600?C have been carried out to promote the formation of a structure of ferrite and carbides, which is also acceptable for this steel grade. Unexpectedly, a microstructure composed of ferrite and martensite has been obtained. Compared with the ferritic-bainitic grade, the new structure is characterized by a slight decrease of the yield point but by an increase of the ultimate tensile strength of not less than 80 MPa, with a transition from a quasi-discontinuous to a clearly continuous yielding behaviour. Accordingly, the yield-to-tensile strength ratio decreases from 0.90 to 0.75 and the impact energy decreases of 35 J and 60 J for the two gauge levels, respectively. The mechanical behaviour of the strips coiled at high temperature is explained as a direct consequence of the dual phase structure with hard phase interspersed in a soft ferrite matrix. The presence of martensite is justified by invoking the so-called incomplete bainite reaction. The partial transformation in ferrite after coiling and the long time necessary for the coil to cool down stabilize the not yet transformed austenite due to the carbon enrichment making the bainite formation impossible at lower temperatures.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"23 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80432747","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

Non-diaphragm electrodeposition of antimony: Effect of process parameters and precipitating agents 锑的非隔膜电沉积:工艺参数和沉淀剂的影响

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb220129027m

M. Morcalı, Ö. Küçükoğlu, B. Çetiner, S. Aktaş

{"title":"Non-diaphragm electrodeposition of antimony: Effect of process parameters and precipitating agents","authors":"M. Morcalı, Ö. Küçükoğlu, B. Çetiner, S. Aktaş","doi":"10.2298/jmmb220129027m","DOIUrl":"https://doi.org/10.2298/jmmb220129027m","url":null,"abstract":"Metallic antimony production from antimony-bearing materials is a research hotspot. The conventional electrowinning technology of antimony is a challenging problem due to the sulfur compounds that come from both the ore itself and the leaching solution in the electrolysis system. The electro-production of antimony in modified non-diaphragm cells is of interest because of the high price and maintenance issues associated with diaphragm cells. A sulfur-based problem in non-diaphragm cells is the focus of this study, which investigates the effects of various salts on this problem and also optimizes antimony production conditions. Various salts (i.e., BaCl2, CaCl2, Ba(OH)2, Ca(OH)2) were used as a precipitating agent for the formation of insoluble salts (BaSO4/CaSO4 and BaSO3/CaSO3), Sb concentration, amount of NaOH and Na2S in the bath, electrowinning time, and temperature were investigated to optimize reaction parameters. The Taguchi experimental design was used to determine the effect of each factor on the Sb deposition. The phases and structures formed during electroproduction were identified with the help of various measurement techniques This study found that in the presence of 96 mM BaCl2, 45 g/L of Sb concentration, 100 g/L of NaOH, and 60 g/L of Na2S were the most suitable factors. It was found that 40oC was the optimal electrowinning temperature. This result also demonstrated that increasing concentrations of BaCl2 reduced specific energy consumption.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"19 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90198115","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

Characterization and analysis on the hemispherical point temperature uncertainty problem of mold flux with volatiles 含挥发物的结晶器助焊剂半球面点温度不确定性问题的表征与分析

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb211209019w

Z. Wang, Mengmeng Ren, J. Zhao, Z. Zhang, H. Wang, A.-L. Hu, Ya-ru Cui

{"title":"Characterization and analysis on the hemispherical point temperature uncertainty problem of mold flux with volatiles","authors":"Z. Wang, Mengmeng Ren, J. Zhao, Z. Zhang, H. Wang, A.-L. Hu, Ya-ru Cui","doi":"10.2298/jmmb211209019w","DOIUrl":"https://doi.org/10.2298/jmmb211209019w","url":null,"abstract":"In hemisphere point temperature (Thp) measurement of continuous casting mold flux, the evaporation of volatiles under high temperature will have a strong impact on the results. Based on the comprehensive analysis of hemisphere point method and its influencing factors, the corresponding volatile-containing mold flux and non-volatile mold flux were selected to get Thp with different heating rates. Combined with the Thp measurement and TG-DSC results, the effect of relevant factors during measuring process were analysed and the way to characterize and evaluate the effects were suggested. Furthermore, an improved method of mold flux melting point test was put forward. The results showed that for non-volatile mold flux, the temperature hysteresis has a greater effect than heat transfer delay and fractional melting. And for mold flux with volatile, the effect of evaporation is greater than other factors. Traditional hemisphere-point method is no longer suitable for the volatile mold flux. In order to get through this problem, improved methods were proposed. One is measuring Thp by traditional way, correcting the composition at the Thp, corresponding Thp with the corrected composition. Another is taking the initial composition, revising the hemispherical point temperature Thp, matching the revised Thp with the initial composition.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"122 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77459086","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

Gibbs free energy of formation of Cu2In2O5 ternary phase determined by E.M.F. method 电动势法测定Cu2In2O5三元相形成的吉布斯自由能

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb220614030j

D. Jendrzejczyk-Handzlik, P. Handzlik

引用次数: 0

Induction vacuum smelting of Co-Al-W superalloys - optimizing the feedstock based on the alloy's chemical composition, elemental segregation, and slag formation Co-Al-W高温合金的感应真空熔炼——基于合金的化学成分、元素偏析和炉渣形成优化原料

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb211107002m

T. Mikuszewski, A. Tomaszewska, G. Moskal, D. Migas, B. Witala

{"title":"Induction vacuum smelting of Co-Al-W superalloys - optimizing the feedstock based on the alloy's chemical composition, elemental segregation, and slag formation","authors":"T. Mikuszewski, A. Tomaszewska, G. Moskal, D. Migas, B. Witala","doi":"10.2298/jmmb211107002m","DOIUrl":"https://doi.org/10.2298/jmmb211107002m","url":null,"abstract":"In this study, the manufacturing of Co-Al-W alloys by smelting in an vacuum induction furnace is discussed taking into account the optimizing of the feedstock material morphology. Herein, the influence of various feedstock conditions and the order of introducing the alloying elements into a liquid alloy are analyzed and described. The investigation revealed that it is possible to obtain the desired chemical composition of Co-Al-W alloys using fragmented tungsten pellets introduced from a vacuum feeder into the liquid Co-Al alloy heated above the liquidus temperature by maximum of 40-50?C. This technical variant requires accurate temperature control of the molten alloy, which does not ensure complete reproducibility. The disadvantage of this process lies in the relatively high slag formation. The optimal technical solution involves obtaining the liquid Co-W solution and introducing Al at the end of the smelting process; in this variant, the slagging effect is relatively low. Additionally, melting of the alloy in an argon atmosphere reduces the loss of aluminum due to evaporation, as compared to melting in a vacuum. The smelting process can be carried out either in Al2O3 solid crucibles or in compacted crucibles made of MgO-based refractory mass.","PeriodicalId":51090,"journal":{"name":"Journal of Mining and Metallurgy Section B-Metallurgy","volume":"53 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73569224","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

Synthesis of ZnO nanoparticles from electric arc furnace dust 利用电弧炉粉尘合成ZnO纳米颗粒

IF 1 4区材料科学

Journal of Mining and Metallurgy Section B-Metallurgy Pub Date : 2022-01-01 DOI: 10.2298/jmmb211029008b

A. Bui, D. le, T. Nguyen

引用次数: 0