Low cycle fatigue behavior of a cast nickel base superalloy M963 at elevated temperature

IMR OpenIR

	Low cycle fatigue behavior of a cast nickel base superalloy M963 at elevated temperature
	Huang Zhiwei ; Yuan Fuhe ; Wang Zhongguang ; Zhu Shijie ; Wang Fugang
通讯作者	Wang Zhongguang(zhgwang@imr.ac.cn)
	2007-07-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	43 期号:7 页码:678-682
摘要	Low cycle fatigue tests for cast nickel base superalloy M963 have been conducted at 900 degrees C in air under fully reversed total strain control cycling at strain rates of 4x10(-3) s(-1) and 1x10(-4) s(-1). The experimental results showed that at the same strain amplitude, fatigue life at low strain rate was shorter than that at high strain rate, which is attributed to time dependent damage mechanism such as oxidation. SEM observation revealed that the cracks initiated at the surface-connected carbides and/or casting micropores at subsurface. When the strain rate was lower, some of the cracks tended to initiate at interdendritic regions and then propagate along interdendritic regions. In all tests, the cracking mode was transgranular.
关键词	Ni base superalloy high temperature low cycle fatigue strain rate cracking
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000248548200002
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：3[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/321006/91756
专题	中国科学院金属研究所
通讯作者	Wang Zhongguang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Fukuoka Inst Technol, Dept Intelligent Mech Engn, Fukuoka, Japan 3.Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Huang Zhiwei,Yuan Fuhe,Wang Zhongguang,et al. Low cycle fatigue behavior of a cast nickel base superalloy M963 at elevated temperature[J]. ACTA METALLURGICA SINICA,2007,43(7):678-682.
APA	Huang Zhiwei,Yuan Fuhe,Wang Zhongguang,Zhu Shijie,&Wang Fugang.(2007).Low cycle fatigue behavior of a cast nickel base superalloy M963 at elevated temperature.ACTA METALLURGICA SINICA,43(7),678-682.
MLA	Huang Zhiwei,et al."Low cycle fatigue behavior of a cast nickel base superalloy M963 at elevated temperature".ACTA METALLURGICA SINICA 43.7(2007):678-682.