Effects of Post-weld Aging Treatment on Friction Stir Welding Joint of 6082-T6 Aluminum Alloy

doi:10.11896/j.issn.1005-023X.2017.08.013

	Effects of Post-weld Aging Treatment on Friction Stir Welding Joint of 6082-T6 Aluminum Alloy
	Wang, Xijing; Wei, Xueling; Zhang, Liangliang
刊名	Cailiao Daobao/Materials Review
	2017-04-25
卷号	31 期号:4 页码:62-65
关键词	Aluminum alloys Friction Heat affected zone Mechanical properties Metal testing Microhardness Microstructure Research laboratories Scanning electron microscopy Strain energy Tensile strength Tensile testing Transmission electron microscopy Vickers hardness Artificial aging Artificial aging treatments Friction stir welding joints Friction stir welding(FSW) Interface energy Micro-structure evolutions Microstructure analysis Strength improvements
ISSN号	1005023X
DOI	10.11896/j.issn.1005-023X.2017.08.013
英文摘要	Microstructure evolution and mechanical properties of friction stir welded 6082-T6 aluminum alloy during post-weld natural and artificial aging treatment were investigated by means of transmission electron microscope(TEM), scanning electron microscope (SEM), tensile test machine and Vickers hardness tester. The results show that microhardness of the joint after artificial aging treatment was about 10-25HV higher than welded and naturally aged alloy. Artificial aging was superior to natural aging on improving the microhardness of the nugget zone and heat affected zone. After post-weld natural aging or artificial aging treatment, the mechanical properties of welded joint was improved to certain extents.The tensile strength increased by 12% and elongation decreased by 9% after artificial aging, compared to natural aging. Artificial aging was more effective for tensile strength improvement. After artificial aging, the microstructure of the nugget had significant changes. NZ was mainly GP zone and the microhardness increased with the increase of the cluster size and the GP region after artificial aging treatment. HAZ was mainly coarse β', but microhardness had little change after artificial aging treatment.It is found that the shape of precipitates can be determined by the interface energy and strain energy via microstructure analysis. © 2017, Materials Review Magazine. All right reserved.
语种	中文
出版者	Cailiao Daobaoshe/ Materials Review
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114328]
专题	材料科学与工程学院
作者单位	State Key Laboratory of Gansu Advanced Nonferrous Metal Materials, School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wang, Xijing,Wei, Xueling,Zhang, Liangliang. Effects of Post-weld Aging Treatment on Friction Stir Welding Joint of 6082-T6 Aluminum Alloy[J]. Cailiao Daobao/Materials Review,2017,31(4):62-65.
APA	Wang, Xijing,Wei, Xueling,&Zhang, Liangliang.(2017).Effects of Post-weld Aging Treatment on Friction Stir Welding Joint of 6082-T6 Aluminum Alloy.Cailiao Daobao/Materials Review,31(4),62-65.
MLA	Wang, Xijing,et al."Effects of Post-weld Aging Treatment on Friction Stir Welding Joint of 6082-T6 Aluminum Alloy".Cailiao Daobao/Materials Review 31.4(2017):62-65.