Effects of Laser Shock Processing on Fatigue Crack Growth in Ti-17 Titanium Alloy

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	Effects of Laser Shock Processing on Fatigue Crack Growth in Ti-17 Titanium Alloy
	Huang S(黄帅); Zhu Y(朱颖); Guo W(郭伟); Peng P(彭鹏); Qiao HC(乔红超); Diao, Xungang; Chu, Paul K.
刊名	Journal of Materials Engineering and Performance
	2017
卷号	26 期号:2 页码:813-821
关键词	failure analysis fatigue crack growth laser shock processing titanium
ISSN号	1059-9495
通讯作者	彭鹏 ; Chu, Paul K.
产权排序	3
中文摘要	The effects of laser shock processing (LSP) on the fatigue crack properties of Ti-17 titanium alloy are investigated. Surfaces on either side of a fatigue slot are subjected to LSP. The residual stress of the irradiated surface is measured by x-ray diffraction measurement and fatigue crack growth testing of the treated and untreated specimens. The fatigue fracture morphology and microstructure are examined by scanning electron microscopy and transmission electron microscopy. Proliferation and tangles of dislocations occur in the Ti-17, and the density of dislocation increases after the LSP treatment. The fine spacing of the fatigue striations indicates that LSP produces residual compressive stress on the irradiated surfaces which can delay micro-crack formation and expansion. Consequently, the fatigue propagation life of the specimen increases considerably after LSP.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Materials Science, Multidisciplinary
研究领域[WOS]	Materials Science
关键词[WOS]	6061-T6 ALUMINUM-ALLOY ; FOREIGN OBJECT DAMAGE ; RESIDUAL-STRESS ; PEENED TI-6AL-4V ; GRAIN-REFINEMENT ; BEHAVIOR ; PROPAGATION ; MICROSTRUCTURE ; INDENTATION ; SPECIMENS
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000395062000040
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/19815]
专题	沈阳自动化研究所_装备制造技术研究室
推荐引用方式 GB/T 7714	Huang S,Zhu Y,Guo W,et al. Effects of Laser Shock Processing on Fatigue Crack Growth in Ti-17 Titanium Alloy[J]. Journal of Materials Engineering and Performance,2017,26(2):813-821.
APA	Huang S.,Zhu Y.,Guo W.,Peng P.,Qiao HC.,...&Chu, Paul K..(2017).Effects of Laser Shock Processing on Fatigue Crack Growth in Ti-17 Titanium Alloy.Journal of Materials Engineering and Performance,26(2),813-821.
MLA	Huang S,et al."Effects of Laser Shock Processing on Fatigue Crack Growth in Ti-17 Titanium Alloy".Journal of Materials Engineering and Performance 26.2(2017):813-821.