Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science最新文献

Effect of Inflow Mode and Parameters on Temperature and Phase Transition of Wires During Isothermal Quenching in Molten Salt Bath 熔盐浴等温淬火时流入方式和参数对焊丝温度和相变的影响

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-11-14 DOI: 10.1007/s11663-023-02959-2

Jun Li, Lei Wang, Chenyang Xing, Yu Zhang, Bo Wang, Jieyu Zhang

引用次数: 0

Kinetic Analysis of Hydrogen Reduction of Nickel Compounds 氢还原镍化合物的动力学分析

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-11-14 DOI: 10.1007/s11663-023-02955-6

Sonja Pöyhtäri, Juhani Ruokoja, Eetu-Pekka Heikkinen, Anne Heikkilä, Tommi Kokkonen, Pekka Tynjälä

{"title":"Kinetic Analysis of Hydrogen Reduction of Nickel Compounds","authors":"Sonja Pöyhtäri, Juhani Ruokoja, Eetu-Pekka Heikkinen, Anne Heikkilä, Tommi Kokkonen, Pekka Tynjälä","doi":"10.1007/s11663-023-02955-6","DOIUrl":"https://doi.org/10.1007/s11663-023-02955-6","url":null,"abstract":"Abstract A review on the hydrogen reduction kinetics of NiO, NiCO 3, and Ni(OH) 2 hydrogen was conducted, and the most significant experimental values and results were summarized from the past two decades. Isothermal hydrogen reduction experiments of NiO, NiCO 3, and, Ni(OH) 2 experiments were carried out at 300 °C, 400 °C, and 500 °C, and the obtained data were fitted to multiple different solid-state kinetic models in order to compare the suitability of the models. Non-isothermal reduction in H 2 (0 °C $$to $$ <mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"> <mml:mo>→</mml:mo> </mml:math> 900 °C) showed the decomposition of NiCO 3 at a temperature range of 230 °C to 300 °C and Ni(OH) 2 at 220 °C to 300 °C. The calculated E a values for NiCO 3 , Ni(OH) 2, and NiO varied between 30 and 35, 36 and 37, and 21 and 26 kJ/mol, respectively. Most of the used models were well fitted making the choice of unequivocally the best suitable model difficult and the identification of the mechanism behind the reaction. It was concluded that an increase in temperature accelerates the reduction process, and the reaction rate-controlling mechanism requires more extensive investigation.","PeriodicalId":51126,"journal":{"name":"Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134956991","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

Exploring Cr and O Transfer Mechanisms in the Weld Metal of P92 Heat-Resistant Steel Processed by CaF2-Cr2O3 Fluxes CaF2-Cr2O3助熔剂加工P92耐热钢焊缝金属中Cr、O传递机理的探讨

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-11-14 DOI: 10.1007/s11663-023-02951-w

Haoxin Liu, Yanyun Zhang, Ming Zhong, Yingchao Feng, Jinping Liu, Cong Wang

引用次数: 0

Vibrations Analysis of Bubble Evolution in Liquids of Varying Physical Properties 不同物理性质液体中气泡演化的振动分析

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-11-13 DOI: 10.1007/s11663-023-02953-8

Konstantinos Rigas, Bernd Willers, Sven Eckert, Björn Glaser

{"title":"Vibrations Analysis of Bubble Evolution in Liquids of Varying Physical Properties","authors":"Konstantinos Rigas, Bernd Willers, Sven Eckert, Björn Glaser","doi":"10.1007/s11663-023-02953-8","DOIUrl":"https://doi.org/10.1007/s11663-023-02953-8","url":null,"abstract":"Abstract In recent years there is an attempt to control the gas stirring intensity in metal-making ladles with the aid of vibration measurements. Understanding better the induced vibrations in two-phase flows can substantially improve the existing models for gas stirring control. In this work, highly sensitive accelerometers were used for the vibration measurements in a liquid metal alloy; Sn–40 wt pctBi alloy at 200 °C and water at 20 °C. The examination of the liquids was conducted in the ladle mockup integrated into the Liquid Metal Model for Steel Casting facility at Helmholtz-Zentrum Dresden Rossendorf. Single bubbles were generated in the respective liquids by controlled argon injection at low flow rates in the range of 0.01 to 0.15 NL min −1 through a single nozzle installed at the bottom of the ladle. Obtained results demonstrate differences between the induced vibrations in the examined liquids in terms of the magnitude of the root mean square values of vibration amplitude and the shape of the resulting curves with increasing flow rate. Furthermore, continuous wavelet transform reveals variations in the duration and vibrational frequency of the evolved bubble phenomena. The findings suggest that differences in the physical properties of the examined liquids result in variations in the vibrations induced during bubble evolution.","PeriodicalId":51126,"journal":{"name":"Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136282360","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

On the Microstructure and MnS Precipitation in a High Sulfur Steel Based on Directional Solidification: The Effect of Cooling Rate 基于定向凝固的高硫钢组织与MnS析出:冷却速率的影响

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-11-13 DOI: 10.1007/s11663-023-02961-8

Quanlei Zhou, Wen Yang, Ying Ren, Lifeng Zhang

引用次数: 0

Recycling of LiCoO2 Battery Cathode Material Through Aluminothermic Reduction Using Aluminum Waste Chips 废铝片铝热还原法回收LiCoO2电池正极材料

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-11-13 DOI: 10.1007/s11663-023-02946-7

D. C. Nababan, R. Mukhlis, Y. Durandet, L. H. Prentice, W. D. A. Rickard, M. I. Pownceby, M. A. Rhamdhani

引用次数: 0

Experimental Phase Equilibria and Liquidus of CaO-Al2O3-SiO2-Na2O-B2O3 Slags Relevant to E-waste Processing 与电子垃圾处理相关的CaO-Al2O3-SiO2-Na2O-B2O3渣的实验相平衡和液相线

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-11-10 DOI: 10.1007/s11663-023-02952-9

Md Khairul Islam, Michael Somerville, Mark I. Pownceby, James Tardio, Suresh Bhargava, Nawshad Haque

{"title":"Experimental Phase Equilibria and Liquidus of CaO-Al2O3-SiO2-Na2O-B2O3 Slags Relevant to E-waste Processing","authors":"Md Khairul Islam, Michael Somerville, Mark I. Pownceby, James Tardio, Suresh Bhargava, Nawshad Haque","doi":"10.1007/s11663-023-02952-9","DOIUrl":"https://doi.org/10.1007/s11663-023-02952-9","url":null,"abstract":"Abstract Ternary master slags based on the CaO-Al 2 O 3 -SiO 2 system with CaO/SiO 2 (C/S) ratio 0.3–1.0 were doped with 5–20 wt pct of anhydrous borax (Na 2 B 4 O 7 ) to study the phase equilibria of the quinary CaO-Al 2 O 3 -SiO 2 -Na 2 O-B 2 O 3 slag system within the temperature range 1050–1350 °C. This research uses the well-known method of high temperature equilibration of slags followed by rapid quenching. The quenched slag samples were examined using a Scanning Electron Microscope (SEM) and Wavelength Dispersive Electron Probe Microanalysis (WD-EPMA) technique to determine the structure and to analyse the chemistry of the phases in equilibrium. The primary phase of 15 slag compositions was identified and the liquidus temperature of the slags were determined within an uncertainty range of ±10–20 °C by using an iterative approach. Overall, the liquidus temperature of slags decreased with increasing borax content with the highest liquidus reduction observed in slags having a C/S ratio 0.3 and the lowest in the slag series with C/S ratio of 1.0. A comparative analysis of the effect of borax, Na 2 O and B 2 O 3 on the liquidus temperature of slags is discussed. Results indicated that although borax reduces the liquidus of ternary CaO-Al 2 O 3 -SiO 2 slags, the addition of B 2 O 3 individually showed more prominent effects than borax in reducing the slag liquidus. Anorthite (CaO.Al 2 O 3 .2SiO 2 ), pseudowollastonite (CaO.SiO 2 ) and gehlenite (2CaO.Al 2 O 3 .SiO 2 ) primary phases were identified.","PeriodicalId":51126,"journal":{"name":"Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135093005","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

Development of a Dross Build-Up Growth Process Model for Hot-Dip Galvanizing Considering Surface Reaction Kinetics 考虑表面反应动力学的热镀锌积渣生长过程模型的建立

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-11-10 DOI: 10.1007/s11663-023-02921-2

Georg Reiss, Werner Eßl, Raluca Andreea Trasca, Claudia Mugrauer, Mihaela Stefan-Kharicha, Abdellah Kharicha, Eva Gerold, Frank Goodwin

引用次数: 1

Electrochemical Formation of Calcium Hexaboride and Boronizing of Metal Electrodes in CaCl2-Based Molten Salt 六硼化钙的电化学生成及金属电极在cacl2基熔盐中的硼化

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-11-08 DOI: 10.1007/s11663-023-02956-5

Yumi Katasho, Tetsuo Oishi, Geir Martin Haarberg

引用次数: 0

Comparison Between Microwave Heating and Conventional Heating of Magnetite During Hydrogen Reduction 磁铁矿氢还原过程微波加热与常规加热的比较

2区材料科学

Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science Pub Date : 2023-11-08 DOI: 10.1007/s11663-023-02944-9

Meijie Zhou, Liqun Ai, Lukuo Hong, Caijiao Sun, Yipang Yuan

引用次数: 0