Effect of tool pin profile on microstructure and mechanical properties of 2024 aluminum alloy joint by friction stir welding

doi:10.12073/j.hjxb.20160410001

	Effect of tool pin profile on microstructure and mechanical properties of 2024 aluminum alloy joint by friction stir welding
	Wang, Xijing; Ma, Xiaofei; Zhang, Liangliang
刊名	Hanjie Xuebao/Transactions of the China Welding Institution
	2017-12-25
卷号	38 期号:12 页码:99-103
关键词	Aluminum alloys Friction Grain size and shape Heat affected zone Mechanical properties Microstructure Research laboratories Tensile strength 2024 aluminum alloy Fracture mode Grain size Microstructure and mechanical properties Parent metal Thermomechanically affected zones Tool pin profile Weld nuggets
ISSN号	0253360X
DOI	10.12073/j.hjxb.20160410001
英文摘要	The effect of different tool pin profiles on the microstructure and mechanical properties of 2024 aluminum alloy joint made by friction stir welding was investigated. The results indicated that all tools can obtain good joints. The joint made with triangular pyramid tool pin profile had an unbroken onion ring in the cross section and the grain size of weld nugget zone (NZ) was 5~11 μm, which was the smallest compared to others. The lowest microhardness in the joint appeared between the heat-affected zone (HAZ) and thermomechanically affected zone (TMAZ), and the value in the joint welded by triangular pyramid tool pin profile was higher than that in other joints. The tensile strength of all joints reached more than 80% of that of the parent metal. The joint made with triangular pyramid tool pin profile had the highest tensile strength which was 394.74 MPa, 87.72% of the base metal, with the elongation of 15.38%. The fracture mode of the joints was plastic. © 2017, Editorial Board of Transactions of the China Welding Institution, Magazine Agency Welding. All right reserved.
语种	中文
出版者	Harbin Research Institute of Welding
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114040]
专题	材料科学与工程学院
作者单位	State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Wang, Xijing,Ma, Xiaofei,Zhang, Liangliang. Effect of tool pin profile on microstructure and mechanical properties of 2024 aluminum alloy joint by friction stir welding[J]. Hanjie Xuebao/Transactions of the China Welding Institution,2017,38(12):99-103.
APA	Wang, Xijing,Ma, Xiaofei,&Zhang, Liangliang.(2017).Effect of tool pin profile on microstructure and mechanical properties of 2024 aluminum alloy joint by friction stir welding.Hanjie Xuebao/Transactions of the China Welding Institution,38(12),99-103.
MLA	Wang, Xijing,et al."Effect of tool pin profile on microstructure and mechanical properties of 2024 aluminum alloy joint by friction stir welding".Hanjie Xuebao/Transactions of the China Welding Institution 38.12(2017):99-103.