Stress rupture properties and fracture behavior of a Ni base single crystal superalloy along [001] direction

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	Stress rupture properties and fracture behavior of a Ni base single crystal superalloy along [001] direction
	Liu, LR; Jin, T; Zhao, NR; Wang, ZH; Sun, XF; Guan, HG; Hu, ZQ
刊名	ACTA METALLURGICA SINICA
	2004-08-01
卷号	40 期号:8 页码:858-862
关键词	Ni base single crystal superalloy stress rupture shear microvoid coalescence
ISSN号	0412-1961
通讯作者	Liu, LR(Lrliu866@sohu.com)
英文摘要	Stress rupture characteristics of a Ni base single crystal superalloy at different test conditions were investigated its fracture surface and longitudinal sections were examined by SEM. The results show that the fracture behavior of the alloy belongs to ductile fracture at range of 760-1100 degreesC. At low temperature (<800 degreesC) and high stress, gamma' particles remain cubic shape, the fracture mode is pure shear fracture, and the alloy is not sensitive to the shrinkage porosity. At high temperature and low stress, directional coarsening of gamma' phases occurs, fracture mode turns to be microvoid coalescence fracture and the alloy is sensitive to the shrinkage porosity.
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000223695400014
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/118848]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, LR
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, LR,Jin, T,Zhao, NR,et al. Stress rupture properties and fracture behavior of a Ni base single crystal superalloy along [001] direction[J]. ACTA METALLURGICA SINICA,2004,40(8):858-862.
APA	Liu, LR.,Jin, T.,Zhao, NR.,Wang, ZH.,Sun, XF.,...&Hu, ZQ.(2004).Stress rupture properties and fracture behavior of a Ni base single crystal superalloy along [001] direction.ACTA METALLURGICA SINICA,40(8),858-862.
MLA	Liu, LR,et al."Stress rupture properties and fracture behavior of a Ni base single crystal superalloy along [001] direction".ACTA METALLURGICA SINICA 40.8(2004):858-862.