Xinchen Nan, Hongyun Zhao, Bin-Bin Jia, Chengyue Ma, Guangda Sun, Li Zhou, Rui Wang, Xiaoguo Song
{"title":"The Effect of Rotational Speed on Microstructure and Mechanical Properties of Al/Ti Dissimilar Joint Produced by Refill Friction Stir Spot Welding","authors":"Xinchen Nan, Hongyun Zhao, Bin-Bin Jia, Chengyue Ma, Guangda Sun, Li Zhou, Rui Wang, Xiaoguo Song","doi":"10.1007/s11665-023-08545-6","DOIUrl":null,"url":null,"abstract":"<div><p>The microstructure and mechanical properties of Al/Ti dissimilar refill friction stir spot welding joints at different rotational speeds were studied. The grain size of each zone of the joint increases with increasing rotational speed. An interfacial layer with thickness less than 50 nm was formed at the interface. Combined with the numerical simulation results, the multiple effects of thermal and mechanical action on microstructure are explained. The microhardness of the aluminum alloy joint presents a ‘W’ shape distribution. The tensile strength increases firstly and then decreases with the increase in rotational speed. The joint strength of 6353 N is the highest at 1300 rpm. The sleeve stir zone fracture occurs at the interface, and the fracture mode is brittle fracture. The pin stir zone fracture occurs at the aluminum alloy, and the fracture mode is ductile mixed fracture.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"34 3","pages":"1812 - 1824"},"PeriodicalIF":2.2000,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Engineering and Performance","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11665-023-08545-6","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The microstructure and mechanical properties of Al/Ti dissimilar refill friction stir spot welding joints at different rotational speeds were studied. The grain size of each zone of the joint increases with increasing rotational speed. An interfacial layer with thickness less than 50 nm was formed at the interface. Combined with the numerical simulation results, the multiple effects of thermal and mechanical action on microstructure are explained. The microhardness of the aluminum alloy joint presents a ‘W’ shape distribution. The tensile strength increases firstly and then decreases with the increase in rotational speed. The joint strength of 6353 N is the highest at 1300 rpm. The sleeve stir zone fracture occurs at the interface, and the fracture mode is brittle fracture. The pin stir zone fracture occurs at the aluminum alloy, and the fracture mode is ductile mixed fracture.
期刊介绍：
ASM International''s Journal of Materials Engineering and Performance focuses on solving day-to-day engineering challenges, particularly those involving components for larger systems. The journal presents a clear understanding of relationships between materials selection, processing, applications and performance.
The Journal of Materials Engineering covers all aspects of materials selection, design, processing, characterization and evaluation, including how to improve materials properties through processes and process control of casting, forming, heat treating, surface modification and coating, and fabrication.
Testing and characterization (including mechanical and physical tests, NDE, metallography, failure analysis, corrosion resistance, chemical analysis, surface characterization, and microanalysis of surfaces, features and fractures), and industrial performance measurement are also covered
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
