Effects of heat treatment after welding on friction stir welding joints of high-strength aluminum alloy

	Effects of heat treatment after welding on friction stir welding joints of high-strength aluminum alloy
	Wang, Xi-Jing1,2 ; Sun, Gui-Ping 1,2; Zhang, Jie1,2 ; Xu, Cheng 1,2; Li, Shu-Wei 1,2; Niu, Yong 1,2
	2009-03-01
发表期刊	Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals
ISSN	10040609
卷号	19 期号:3 页码:484-489
摘要	The microstructure and property before and after heat treatment of friction stir welded 5 mm aero 7075 aluminum alloy were investigated. The results show that when the rotating speed of stirring joint is 600 r/min and the welding speed is 60 mm/min, the tensile strength can reach 381 MPa that is 84.6% of the base metals, which are regarded as the most ideal parameters under experimental conditions. There are equiaxed grains with size of 6-7 μm in weld nugget. After heat treatment, the tensile strength can reach 415 MPa. The lowest hardness appears in thermomechanically affected zone (TMAZ) of advancing side. The fractography has a characteristic of dimples of strengthening phase and the strain fracture appears in TMAZ of advancing side of joints. The weak point of friction stir welding joint for 7075 aluminum alloy occurs in the TMAZ.
关键词	After-heat treatment Aluminum alloys Fracture mechanics Friction High strength alloys Microstructure Research laboratories Tensile strength Textures 7075 aluminum alloy Effects of heat treatment Experimental conditions Friction stir welding joints High strength aluminum alloys Microstructure and properties Strengthening phase Thermomechanically affected zones
收录类别	EI
语种	中文
出版者	Central South University of Technology
EI入藏号	20091712054487
EI主题词	Friction stir welding
EI分类号	531.1 Metallurgy - 538.2.1 Welding Processes - 541.2 Aluminum Alloys - 901.3 Engineering Research - 931.1 Mechanics - 951 Materials Science
来源库	Compendex
分类代码	531.1 Metallurgy - 538.2.1 Welding Processes - 541.2 Aluminum Alloys - 901.3 Engineering Research - 931.1 Mechanics - 951 Materials Science
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/111599
专题	材料科学与工程学院机电工程学院
作者单位	1.State Key Laboratory of Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China; 2.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China
第一作者单位	兰州理工大学; 材料科学与工程学院
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Wang, Xi-Jing,Sun, Gui-Ping,Zhang, Jie,et al. Effects of heat treatment after welding on friction stir welding joints of high-strength aluminum alloy[J]. Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,2009,19(3):484-489.
APA	Wang, Xi-Jing,Sun, Gui-Ping,Zhang, Jie,Xu, Cheng,Li, Shu-Wei,&Niu, Yong.(2009).Effects of heat treatment after welding on friction stir welding joints of high-strength aluminum alloy.Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals,19(3),484-489.
MLA	Wang, Xi-Jing,et al."Effects of heat treatment after welding on friction stir welding joints of high-strength aluminum alloy".Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals 19.3(2009):484-489.