Analysis and Modeling of Friction Stir Processing-Based Crack Repairing in 2024 Aluminum Alloy

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	Analysis and Modeling of Friction Stir Processing-Based Crack Repairing in 2024 Aluminum Alloy
	Ren, Jun-Gang ; Wang, Lei ; Xu, Dao-Kui ; Xie, Li-Yang ; Zhang, Zhan-Chang
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2017-03-01
卷号	30 期号:3 页码:228-237
关键词	Friction stir processing Crack repairing Aluminum alloy Microstructure Hardness Tensile properties
ISSN号	1006-7191
通讯作者	Wang, L (reprint author), Shenyang Aerosp Univ, Dept Electromech Engn, Shenyang 110136, Peoples R China.
中文摘要	A friction stir processing-based method was used to repair cracks in the 2024 aluminum alloy plates. The temperature field and plastic material flow pattern were analyzed on the basis of experimental and finite element simulation results. Microstructure and tensile properties of the repaired specimens were studied. The results showed that the entire crack repairing was a solid-phase process and plastic materials tended to flow toward the shoulder center and then resulted in the repairing of cracks. Meanwhile, the coarse grain structures were refined in repaired zone (RZ), while the grains in thermal-mechanically affected zone and heat-affected zone were elongated and driven to grow up. Meanwhile, large phases are crushed into small particles and dispersed inside the RZ. Finally, the strength of the repaired specimens can be restored dramatically and their ductility can be partially restored. After heat treatment, the tensile properties of the repaired specimens can be further enhanced.
学科主题	Metallurgy & Metallurgical Engineering
收录类别	SCI
资助信息	National Natural Science Foundation of China [51405309]; Natural Science Foundation of Liaoning Province [2015020183]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78254]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Ren, Jun-Gang,Wang, Lei,Xu, Dao-Kui,et al. Analysis and Modeling of Friction Stir Processing-Based Crack Repairing in 2024 Aluminum Alloy[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2017,30(3):228-237.
APA	Ren, Jun-Gang,Wang, Lei,Xu, Dao-Kui,Xie, Li-Yang,&Zhang, Zhan-Chang.(2017).Analysis and Modeling of Friction Stir Processing-Based Crack Repairing in 2024 Aluminum Alloy.ACTA METALLURGICA SINICA-ENGLISH LETTERS,30(3),228-237.
MLA	Ren, Jun-Gang,et al."Analysis and Modeling of Friction Stir Processing-Based Crack Repairing in 2024 Aluminum Alloy".ACTA METALLURGICA SINICA-ENGLISH LETTERS 30.3(2017):228-237.