Effects of laser shock processing on fatigue performance of Ti-17 titanium alloy

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	Effects of laser shock processing on fatigue performance of Ti-17 titanium alloy
	Huang S(黄帅); Zhu Y(朱颖); Guo W(郭伟); Qiao HC(乔红超); Diao, Xungang
刊名	High Temperature Materials and Processes
	2017
卷号	36 期号:3 页码:285-290
关键词	laser shock processing Ti-17 titanium alloy fatigue performance micro-hardness
ISSN号	0334-6455
通讯作者	郭伟
产权排序	3
中文摘要	Ti-17 titanium alloy was treated by laser shock processing (LSP) and the high-frequency fatigue properties were evaluated. The fatigue fracture and the microstructures were observed by scanning electron microscope (SEM) and transmission electron microscope (TEM). The result shows that the average fatigue life of the LSP sample increases 2.62 times at maximum stress 300?MPa under stress ratio is 0.1. The micro-hardness of the samples subjected to LSP increases 20?% compared with the basic material. The proliferation and tangles of dislocations of Ti-17 occurs and the density of dislocation increases after LSP treatment. The high dislocation density of LSP impacts changes the initiation of crack from corner to subsurface, and hinders the crack extension, thus increases the fatigue performance of the Ti-17.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Materials Science, Multidisciplinary
研究领域[WOS]	Materials Science
关键词[WOS]	2024-T351 ALUMINUM-ALLOY ; MECHANISM ; BEHAVIOR ; IMPACTS ; 6061-T6
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000394575000010
内容类型	期刊论文
源URL	[http://ir.sia.cn/handle/173321/20086]
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 performance of Ti-17 titanium alloy[J]. High Temperature Materials and Processes,2017,36(3):285-290.
APA	Huang S,Zhu Y,Guo W,Qiao HC,&Diao, Xungang.(2017).Effects of laser shock processing on fatigue performance of Ti-17 titanium alloy.High Temperature Materials and Processes,36(3),285-290.
MLA	Huang S,et al."Effects of laser shock processing on fatigue performance of Ti-17 titanium alloy".High Temperature Materials and Processes 36.3(2017):285-290.