Thermal Fatigue Behavior of Single-Crystal Superalloy

IMR OpenIR

	Thermal Fatigue Behavior of Single-Crystal Superalloy
	Liu Yuan 1,2; Yu Jinjiang 1; Xu Yan 1; Sun Xiaofeng 1
通讯作者	Liu Yuan(yuanliu@imr.ac.cn)
	2009
发表期刊	RARE METAL MATERIALS AND ENGINEERING
ISSN	1002-185X
卷号	38 期号:1 页码:59-63
摘要	The effects of cycle temperatures on the thermal fatigue crack growth of three kinds of superalloys were investigated. The experimental results show that the crack growth rate increases with the rise of cycle temperature. Optical Microscopy (OM) and Scanning electron microscopy (SEM) observations reveal that multiple small cracks primarily initiated at the notch tip in any temperature range. Subsequently, only one or two small cracks can continue to grow, and finally form the main cracks. The crack growth behavior varies distinctly for different alloys. In general, thermal fatigue cracks propagate along a preferential direction with the dendrite growth direction in single crystal superalloy, but along the interdendritic region for the Mar-M002 alloy.
关键词	single-crystal superalloy thermal fatigue crack initiation and propagation
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000262955600014
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
引用统计	被引频次：11[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/321006/96878
专题	中国科学院金属研究所
通讯作者	Liu Yuan
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Liu Yuan,Yu Jinjiang,Xu Yan,et al. Thermal Fatigue Behavior of Single-Crystal Superalloy[J]. RARE METAL MATERIALS AND ENGINEERING,2009,38(1):59-63.
APA	Liu Yuan,Yu Jinjiang,Xu Yan,&Sun Xiaofeng.(2009).Thermal Fatigue Behavior of Single-Crystal Superalloy.RARE METAL MATERIALS AND ENGINEERING,38(1),59-63.
MLA	Liu Yuan,et al."Thermal Fatigue Behavior of Single-Crystal Superalloy".RARE METAL MATERIALS AND ENGINEERING 38.1(2009):59-63.