Thermal Fatigue Behavior of Single-Crystal Superalloy

CORC > 金属研究所 > 中国科学院金属研究所

	Thermal Fatigue Behavior of Single-Crystal Superalloy
	Liu Yuan 1,2; Yu Jinjiang 1; Xu Yan 1; Sun Xiaofeng 1
刊名	RARE METAL MATERIALS AND ENGINEERING
	2009
卷号	38 期号:1 页码:59-63
关键词	single-crystal superalloy thermal fatigue crack initiation and propagation
ISSN号	1002-185X
通讯作者	Liu Yuan(yuanliu@imr.ac.cn)
英文摘要	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.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000262955600014
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/96877]
专题	金属研究所_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.