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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
Corresponding AuthorWang, Q. Z.(qzhwang@imr.ac.cn) ; Ma, Z. Y.(zyma@imr.ac.cn)
2020
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Volume33Issue:1Pages:67-74
AbstractT6-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.
KeywordMetal-matrix composites Microstructures Mechanical properties Friction stir welding High-speed welding
DOI10.1007/s40195-019-00932-0
Indexed BySCI
Language英语
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000512013800006
PublisherCHINESE ACAD SCIENCES, INST METAL RESEARCH
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/137435
Collection中国科学院金属研究所
Corresponding AuthorWang, Q. Z.; Ma, Z. Y.
Affiliation1.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
Recommended Citation
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.
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