High-Speed Friction Stir Welding of T6-Treated B4Cp/6061Al Composite

doi:10.1007/s40195-019-00932-0

IMR OpenIR

	High-Speed Friction Stir Welding of T6-Treated B4Cp/6061Al Composite
	Li, Y. Z.1; Zan, Y. N.2,3; Wang, Q. Z.1; Xiao, B. L.2; Ma, Z. Y.2
通讯作者	Wang, Q. Z.(qzhwang@imr.ac.cn) ; Ma, Z. Y.(zyma@imr.ac.cn)
	2020
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
卷号	33 期号:1 页码:67-74
摘要	T6-treated 20 wt% B4Cp/6061Al sheets were joined under welding speeds of 400-1200 mm/min by friction stir welding (FSW) with a threaded cermet pin. The macro-defect-free FSW joints could be achieved at high welding speeds up to 1200 mm/min, but larger plunge depth was required at the welding speeds of 800 and 1200 mm/min to eliminate the tunnel defect. In the nugget zone (NZ) of the joints, the B4C particles were broken up and uniformly redistributed. The NZ exhibited lower hardness than the base metal (BM), and the hardness value almost did not change with increasing welding speed, attributable to the dissolution of precipitates. Compared with the BM, the joints showed lower tensile strength. As the welding speed increased from 400 to 800 mm/min, the joint efficiencies were nearly the same and up to ~ 73%. When the welding speed increased up to 1200 mm/min, the tensile strength significantly decreased, due to the occurrence of kissing bond defect at the bottom of the NZ. With increasing welding speed, the fracture location of the joints transferred gradually from the heat-affected zone to the NZ due to the kissing bond defects.
关键词	Metal-matrix composites Microstructures Mechanical properties Friction stir welding High-speed welding
DOI	10.1007/s40195-019-00932-0
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000512013800006
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/137435
专题	中国科学院金属研究所
通讯作者	Wang, Q. Z.; Ma, Z. Y.
作者单位	1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, Y. Z.,Zan, Y. N.,Wang, Q. Z.,et al. High-Speed Friction Stir Welding of T6-Treated B4Cp/6061Al Composite[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2020,33(1):67-74.
APA	Li, Y. Z.,Zan, Y. N.,Wang, Q. Z.,Xiao, B. L.,&Ma, Z. Y..(2020).High-Speed Friction Stir Welding of T6-Treated B4Cp/6061Al Composite.ACTA METALLURGICA SINICA-ENGLISH LETTERS,33(1),67-74.
MLA	Li, Y. Z.,et al."High-Speed Friction Stir Welding of T6-Treated B4Cp/6061Al Composite".ACTA METALLURGICA SINICA-ENGLISH LETTERS 33.1(2020):67-74.