Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science最新文献_第7页

New Insights Into the Formation Mechanism of TiN–Al2O3 Composite Inclusions in Nickel-Based Superalloys Based on Density Functional Theory 基于密度泛函理论对镍基高温合金TiN-Al2O3复合夹杂物形成机制的新认识

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-09-11 DOI: 10.1007/s11663-023-02890-6

Likun Long, Chaoyi Chen, Junqi Li, Linzhu Wang, Xiang Li

引用次数: 0

Effect of Thermal Aging on the Microstructure and Mechanical Properties of Inconel 625 Superalloy Fabricated by High-Speed Laser Metal Deposition 热时效对高速激光沉积Inconel 625高温合金组织和力学性能的影响

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-08-10 DOI: 10.1007/s11663-023-02869-3

Cheng Zhong, Xuechong Ren, Kai Fu, Benli Luan

引用次数: 0

Arsenic Condensation and Reaction Mechanisms in Flash Smelting Off-Gas Line Conditions 闪速熔炼烟气线条件下砷的冷凝及反应机理

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-07-27 DOI: 10.1007/s11663-023-02871-9

Xingbang Wan, Dmitry Sukhomlinov, Pekka Taskinen, Mari Lindgren, Radoslaw Michallik, Ari Jokilaakso

{"title":"Arsenic Condensation and Reaction Mechanisms in Flash Smelting Off-Gas Line Conditions","authors":"Xingbang Wan, Dmitry Sukhomlinov, Pekka Taskinen, Mari Lindgren, Radoslaw Michallik, Ari Jokilaakso","doi":"10.1007/s11663-023-02871-9","DOIUrl":"https://doi.org/10.1007/s11663-023-02871-9","url":null,"abstract":"Abstract Arsenic is a common impurity element in sulfide concentrates. It tends to accumulate in the flue dust of smelting furnace due to the volatility and internal circulation of the flue dust practiced in the smelting-converting process chain. The only outlets for arsenic are anodes and discard slag. Arsenic condensation in dust-free conditions was studied below 800 °C where the gas atmosphere was controlled by SO 2 -air-N 2 gas mixtures. Based on these experimental results, we confirm the kinetically constrained formation mechanism of the arsenic-containing dust, and its speciation into metallic, oxidic (III, V), and sulfidic species. The influences of temperature and atmosphere on the speciation of arsenic were compared with industrial data and discussed. Graphical Abstract Condensed arsenic‐bearing particles collected by electrophoretic forces on the surface of fused SiO 2 in SO 2 ‐O 2 atmospheres: the crystal morphology shows euhedrally facetted As 2 O 3 crystals and initially molten As‐OS alloy droplets together with poorly crystallized AsS x particles.","PeriodicalId":51126,"journal":{"name":"Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science","volume":"239 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135657051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Purification of Mg–Gd–Zr Alloys With Pulsed Electric Current 脉冲电流纯化Mg-Gd-Zr合金

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-06-21 DOI: 10.1007/s11663-023-02848-8

Ying Feng, Changhao Liu, Xiaoshan Huang, Xinfang Zhang

引用次数: 0

Modeling Alumina Feeding With the µ(I)-Rheology 用µ(I)-流变学模拟氧化铝加料

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-05-30 DOI: 10.1007/s11663-023-02812-6

Sindre Engzelius Gylver, Kristian Etienne Einarsrud

{"title":"Modeling Alumina Feeding With the µ(I)-Rheology","authors":"Sindre Engzelius Gylver, Kristian Etienne Einarsrud","doi":"10.1007/s11663-023-02812-6","DOIUrl":"https://doi.org/10.1007/s11663-023-02812-6","url":null,"abstract":"Abstract Efficient feeding and dissolution of alumina are necessary in order to maintain a stable Hall–Héroult process. One dose of alumina contains several thousand grains, and simulating the motion of individual particles is in practice impossible. The current work proposes to model the alumina dose through a continuous formulation, using the µ (I)-rheology. The rheology is implemented as a viscosity model in OpenFOAM and initial verification cases showed an average deviation below 0.1 pct, and a benchmark case had an average deviation of 7.4 pct. A parametric study, where grains were simulated to collapse on a flat surface identified the two rheology parameters $$mu _2$$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:msub> <mml:mi>μ</mml:mi> <mml:mn>2</mml:mn> </mml:msub> </mml:math> and $$I_{text{0}}$$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:msub> <mml:mi>I</mml:mi> <mml:mtext>0</mml:mtext> </mml:msub> </mml:math> to be of particular importance, accounting for more than 70 pct of the variation seen. Finally, three-phase cases simulating the feeding of a dose in cryolite were conducted, and the µ (I)-rheology was able to let the parts of the dose disperse into the melt and detach, which is in accordance with what has been seen in experiments. The current work was also able to couple the model with an earlier developed solidification model, hence, creating a framework for developing a full model for alumina feeding.","PeriodicalId":51126,"journal":{"name":"Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135692846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Decomposition Characteristics of CO2 in Molten Iron and a Novel Process for Carbon-Free Deoxidation of CO2 to Produce CO CO2在铁水中的分解特性及无碳脱氧制CO新工艺

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-05-30 DOI: 10.1007/s11663-023-02819-z

Wenhe Wu, Guangsheng Wei

引用次数: 0

Characteristics of AlN Precipitation and Growth During Solidification of FeCrAl Stainless Steel FeCrAl不锈钢凝固过程中AlN的析出和生长特征

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-05-30 DOI: 10.1007/s11663-023-02800-w

Zhenqiang Deng, Jianhua Liu, Yang He

引用次数: 0

Reaction Mechanisms During Melting of H-DRI Focusing on Slag Formation and the Behavior of Vanadium H-DRI熔炼过程中的反应机理，重点研究钒的成渣和行为

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-05-30 DOI: 10.1007/s11663-023-02827-z

Amanda Vickerfält, Joar Huss, Johan Martinsson, Du Sichen

{"title":"Reaction Mechanisms During Melting of H-DRI Focusing on Slag Formation and the Behavior of Vanadium","authors":"Amanda Vickerfält, Joar Huss, Johan Martinsson, Du Sichen","doi":"10.1007/s11663-023-02827-z","DOIUrl":"https://doi.org/10.1007/s11663-023-02827-z","url":null,"abstract":"Abstract The reaction mechanisms during melting of hydrogen direct reduced iron pellets (H-DRI) with different degrees of reduction were studied experimentally at 1773 K to 1873 K at different times (60 to 600 seconds), focusing on the autogenous slag formation. It was found that an autogenous slag is formed inside the pellets prior to the melting of the metal phase. The formation of the autogenous slag started with the melting of FeO, initially located in the center of the iron grains. The liquid FeO flowed into the pore network of the pellet. While flowing, the liquid FeO dissolved parts of the residual oxides, forming an autogenous slag. The slag stayed in the pore network until the iron was molten. Upon melting of the iron, the slag coalesced into spherical droplets. The final state is reached upon the separation of the metal and slag phases by flotation, as a bulk slag was formed on the surface of the liquid iron. In addition, since the iron ore used in this study contains vanadium, the behavior of V was discussed separately based on the experimental observations to build a basis for future studies on V extraction.","PeriodicalId":51126,"journal":{"name":"Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135477915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Phosphorus Partition Between Liquid Crude Steel and High-Basicity Basic Oxygen Furnace Slags Containing V2O5 粗钢液与含V2O5高碱度碱性氧炉炉渣间磷的分配

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-04-19 DOI: 10.1007/s11663-023-02778-5

Lukas Neubert, Oleksandr Kovtun, Thilo Kreschel, Olena Volkova

引用次数: 0

Analysis of the Kinetics of Devitrification and Crystallization of a Melilite Mold Powder Slag for Medium Carbon Steel Billet Casting 中碳钢方坯铸造用Melilite结晶器渣脱氮结晶动力学分析

IF 3 2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2020-04-01 DOI: 10.1007/S11663-019-01761-3

P. La, A. Rodríguez, C. Ortega

引用次数: 1