Metallurgical and Materials Transactions A最新文献_第9页

Development of Microstructure in Aluminum Single Crystal During Complex Shearing of Extruded Tube 挤压管复杂剪切过程中铝单晶的微观结构发展

Metallurgical and Materials Transactions A Pub Date : 2024-06-29 DOI: 10.1007/s11661-024-07476-8

Pavel Lejček, Andrea Školáková, Orsolya Molnárová, Stanislav Habr, Jaroslav Čapek, Marta Čepová, Přemysl Málek

引用次数: 0

Formation and Physical Properties of (NbTa) $$_{67}$$ (HfZr) $$_{33}$$ Medium-Entropy Alloy and (NbTa) $$_{67}$$ (HfZrTi) $$_{33}$$ High-Entropy Alloy Prepared by Mechanical Alloying 通过机械合金化制备的 (NbTa) $$_{67}$$ (HfZr) $$_{33}$$ 中熵合金和 (NbTa) $$_{67}$$ (HfZrTi) $$_{33}$ 高熵合金的形成与物理性质

Metallurgical and Materials Transactions A Pub Date : 2024-06-28 DOI: 10.1007/s11661-024-07489-3

Rafał Idczak, Piotr Sobota, Daniel Gnida, Sławomir Kołodziej, Beata Chrząszcz, Mathieu Pasturel, Adam Pikul

引用次数: 0

Numerical-Experimental Assessment of the Semi-Solid Contraction Behavior of Grain-Refined High Strength Aluminum Alloy, B206 对晶粒限定的高强度铝合金 B206 的半固态收缩行为进行数值-实验评估

Metallurgical and Materials Transactions A Pub Date : 2024-06-27 DOI: 10.1007/s11661-024-07481-x

H. J. Alhejazi, D. M. Maijer, S. Avraham, A. B. Phillion

引用次数: 0

Microstructural Design via Quenching and Partitioning for Enhanced Mechanical and Wear Properties in AISI 9254 Spring Steel: A Comprehensive Investigation 通过淬火和偏析进行微结构设计以增强 AISI 9254 弹簧钢的机械和磨损性能：综合研究

Metallurgical and Materials Transactions A Pub Date : 2024-06-27 DOI: 10.1007/s11661-024-07471-z

Mohammad Masoumi, Dany M. A. Centeno, Gustavo Tressia, Pablo Alejandro Correa, Edwan Anderson Ariza, Javad Mola

{"title":"Microstructural Design via Quenching and Partitioning for Enhanced Mechanical and Wear Properties in AISI 9254 Spring Steel: A Comprehensive Investigation","authors":"Mohammad Masoumi, Dany M. A. Centeno, Gustavo Tressia, Pablo Alejandro Correa, Edwan Anderson Ariza, Javad Mola","doi":"10.1007/s11661-024-07471-z","DOIUrl":"https://doi.org/10.1007/s11661-024-07471-z","url":null,"abstract":"This study presents a comprehensive and innovative approach to tailoring the microstructure of AISI 9254 steel using a quenching and partitioning (Q&P) process, demonstrating significant improvements in mechanical and wear properties. The initial pearlitic microstructure was first heated to the fully austenitizing region before undergoing phase transformation into a multi-phase matrix using the novel Q&P process, resulting in the formation of ferrite, bainite, martensite, and retained austenite. Investigation revealed the central role of retained austenite in enhancing the mechanical properties through the Transformation Induced Plasticity (TRIP) effect. In particular, heat-treated specimens exhibited a mechanical resistance of up to 1.9 GPa and an elongation of approximately 12 pct. Furthermore, this study highlights remarkable enhancements in wear resistance of the treated AISI 9254 steel. A decreased wear rate, reduced volume loss, and improved contact area stability were achieved, attributed to debris aggregation, contact area changes, and the work hardening of the wear track. Consequently, the Q&P process can considerably enhance the in-service performance and life span of AISI 9254 steel components. The insights provided by this work into the potential benefits of a tailored Q&P process in AISI 9254 steel set forth a promising pathway towards reduced maintenance costs and heightened reliability across various applications. Exploring this process showcases the transformative potential of materials engineering for industrial applications.","PeriodicalId":18504,"journal":{"name":"Metallurgical and Materials Transactions A","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141529657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Galvanic-Polishing-Assisted Near Net Shape Forming of Friction Stir Channels: Heat Dissipation Capacity Enhancement 电镀抛光辅助摩擦搅拌槽近净成形：提高散热能力

Metallurgical and Materials Transactions A Pub Date : 2024-06-27 DOI: 10.1007/s11661-024-07483-9

Cheng Shan, Shengnan Hu, Shenglong Wang, Xiangchen Meng, Yuming Xie, Xiaotian Ma, Naijie Wang, Yongxian Huang

引用次数: 0

Simulations of Texture Evolution in the Near-Surface Region During Aluminum Rolling 模拟铝材轧制过程中近表面区域的纹理演变

Metallurgical and Materials Transactions A Pub Date : 2024-06-26 DOI: 10.1007/s11661-024-07472-y

Elisa Cantergiani, Michael Riedel, Kai F. Karhausen, Franz Roters, Angela Quadfasel, Georg Falkinger, Olaf Engler, Rajeevan Rabindran

{"title":"Simulations of Texture Evolution in the Near-Surface Region During Aluminum Rolling","authors":"Elisa Cantergiani, Michael Riedel, Kai F. Karhausen, Franz Roters, Angela Quadfasel, Georg Falkinger, Olaf Engler, Rajeevan Rabindran","doi":"10.1007/s11661-024-07472-y","DOIUrl":"https://doi.org/10.1007/s11661-024-07472-y","url":null,"abstract":"Prediction of texture changes during cold rolling is important because they affect the recrystallization and anisotropy of an aluminum sheet during successive forming steps. During cold rolling of aluminum alloys, the through-thickness textural change in the subsurface layer depends heavily on the shear stresses exerted on the material. The intensity of this shear stress is determined by the value of and change in the coefficient of friction as the contact length between the rolls and metallic sheet changes. The quality of the texture prediction under constant and variable coefficients of friction are assessed for three established texture models: the grain interaction (GIA) model, the viscoplastic self-consistent (VPSC) approach, and the full-field crystal plasticity Düsseldorf Advanced Material Simulation Kit (DAMASK) code. The simulation results are compared with subsurface layer textures obtained from conducting experimental cold-rolling trials on an aluminum alloy, which are designed to maximize shear in a single rolling pass. The formulation of a variable coefficient of friction is crucial for ensuring both the reasonable prediction of rolling forces and changes in texture. GIA and DAMASK yield the best texture prediction results for a variable coefficient of friction model.","PeriodicalId":18504,"journal":{"name":"Metallurgical and Materials Transactions A","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141522429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dissolution of Nb(C,N) During Post-weld Heat-Treatment of Electric Resistance Welded X70 Line Pipe X70 管线钢管电阻焊焊后热处理过程中 Nb（C，N）的溶解

Metallurgical and Materials Transactions A Pub Date : 2024-06-26 DOI: 10.1007/s11661-024-07496-4

Leijun Li, Kopparthi Ravikiran, Nitin Kumar Sharma, Suvan Dev Choudhury, Rangasayee Kannan, Michael J. Gaudet, Neil Anderson

引用次数: 0

Effects of Marangoni Flow on the Composition Distribution of Laser-Cladded 316L on 45 Steel 马兰戈尼流对 45 号钢激光熔覆 316L 成分分布的影响

Metallurgical and Materials Transactions A Pub Date : 2024-06-26 DOI: 10.1007/s11661-024-07418-4

Honghao Ge, Pengzhi Zhang, Bo Jiang, Yunfeng Liu, Qunli Zhang, Jianhua Yao

{"title":"Effects of Marangoni Flow on the Composition Distribution of Laser-Cladded 316L on 45 Steel","authors":"Honghao Ge, Pengzhi Zhang, Bo Jiang, Yunfeng Liu, Qunli Zhang, Jianhua Yao","doi":"10.1007/s11661-024-07418-4","DOIUrl":"https://doi.org/10.1007/s11661-024-07418-4","url":null,"abstract":"During the laser cladding process, complex composition distribution in the molten pool was caused from the Marangoni flow, which leading to one kind of defect termed as macrosegregation. Therefore, comprehensive understanding on the flow behaviors in the molten pool is particularly important for predicting and regulating macrosegregation. In this paper, a three-phase Eulerian model based on the volume averaging method is developed to investigate the effect of Marangoni coefficient variations on the flow and compositional distribution. The flow patterns were photographed and analyzed using a high-speed camera, and then the simulated and experimental results for chromium concentration distribution, size of the cladding layer, depth of the molten pool, and flow pattern were compared and found to be in agreement with each other; thus, the accuracy of the model was validated. Meanwhile, the effects of flow direction and intensity on the composition distribution are comprehensively studied. The results show that the flow direction extremely affects the flow path and evolution process of Cr-enriched melt in the molten pool. At the same time, the flow intensity will change the flow time of Cr-enriched melt in the molten pool and then affect the homogenization of composition distribution.","PeriodicalId":18504,"journal":{"name":"Metallurgical and Materials Transactions A","volume":"205 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141522430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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 Cryorolling, Room Temperature Rolling, and Aging Treatment on the Mechanical, Electrical, and Wear Properties of a Cu-6Ni-6Sn Alloy 低温滚压、室温轧制和时效处理对 Cu-6Ni-6Sn 合金的机械、电气和磨损特性的影响

Metallurgical and Materials Transactions A Pub Date : 2024-06-25 DOI: 10.1007/s11661-024-07466-w

Zhibao Xie, Zhide Li, Delin Tang, Zhengyu Wang, Huijie Cui, Charlie Kong, Hailiang Yu

引用次数: 0

Enhanced Nitriding of 38CrMoAl Steels with Laser Vibrational Excitation of Ammonia 利用氨的激光振动激发增强 38CrMoAl 钢的氮化效果

Metallurgical and Materials Transactions A Pub Date : 2024-06-25 DOI: 10.1007/s11661-024-07456-y

Lisha Fan, Yifeng Lv, Ling Wu, Shuowen Zhang, Tingbin Wang, Fan Liu, Xiaoyu Ding, Jianhua Yao

{"title":"Enhanced Nitriding of 38CrMoAl Steels with Laser Vibrational Excitation of Ammonia","authors":"Lisha Fan, Yifeng Lv, Ling Wu, Shuowen Zhang, Tingbin Wang, Fan Liu, Xiaoyu Ding, Jianhua Yao","doi":"10.1007/s11661-024-07456-y","DOIUrl":"https://doi.org/10.1007/s11661-024-07456-y","url":null,"abstract":"Gas nitriding is a thermochemical surface hardening process that is widely used in industry but suffers from a low decomposition rate of ammonia (NH3) and extremely long processing cycles. To enhance the gas nitriding efficiency, laser vibrational excitation of NH3 is introduced into the gas nitriding of 38CrMoAl steels. By matching the laser wavelength with the N–H wagging mode of NH3, laser energy can be preferentially deposited into NH3 molecules and facilitates their dissociation. The morphology, composition, and mechanical properties of nitrided 38CrMoAl plates strongly depend on the nitriding time length. Nitrided surfaces experience phase transition from α-Fe solid solution with N through γ′-Fe4N to ε-Fe2~3N phase as prolonging the nitriding time length. A 38CrMoAl plate nitrided with laser vibrational excitation of NH3 for 6 hours possesses a higher nitrogen content (7.1 wt pct) and a harder surface (944 HV0.1) than that nitrided without laser (6.3 wt pct, and 811 HV0.1). The study concludes that laser vibrational excitation of NH3 is an effective way to promote nitrogen diffusion kinetics and shorten the nitriding cycle of gas nitriding, which holds great promise in the development of gas nitriding.","PeriodicalId":18504,"journal":{"name":"Metallurgical and Materials Transactions A","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141522508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0