Effect of orientation on low-cycle fatigue behaviour of single crystal superalloys at 900 degrees C

doi:10.1080/02670836.2019.1590503

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	Effect of orientation on low-cycle fatigue behaviour of single crystal superalloys at 900 degrees C
	Li, Peng 1; Zhou, Bomou 2; Zhou, Yizhou 3; Zhang, Zhefeng 2
刊名	MATERIALS SCIENCE AND TECHNOLOGY
	2019-03-14
页码	8
关键词	Orientation fatigue life single crystal superalloy oxidation crack propagation
ISSN号	0267-0836
DOI	10.1080/02670836.2019.1590503
通讯作者	Li, Peng(pengli@ysu.edu.cn)
英文摘要	Low-cycle fatigue tests on [001], [011] and Ni-based single crystal superalloys were conducted at 900 degrees C under a constant plastic strain control. Cracks will more readily propagate between the {111} planes than migrate between the {111} and {001} planes, as shown by the longer crack propagation period and fatigue life for each [001] specimen (all crystal orientations). The oxidation could proceed via two different diffusion paths: short-range diffusion and long-range diffusion. Fatigue cracks prefer to nucleate at one oxide and then propagate along the oxidised slip bands until they link to the next oxide, which could be predicted from fatigue crack growth data, including the fractographic slip band density and oxide depth.
资助项目	Alexander von Humboldt Foundation ; National Natural Science Foundation of China (NSFC)[51001104] ; National Natural Science Foundation of China (NSFC)[51331007] ; Yanshan University Scientific Research Foundation for Advanced Talents
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000461976200001
资助机构	Alexander von Humboldt Foundation ; National Natural Science Foundation of China (NSFC) ; Yanshan University Scientific Research Foundation for Advanced Talents
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/132477]
专题	金属研究所_中国科学院金属研究所
通讯作者	Li, Peng
作者单位	1.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Clean Nano Energy Ctr, Qinhuangdao 066004, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Mat Fatigue & Fracture Div, Shenyang, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Superalloy Div, Shenyang, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Li, Peng,Zhou, Bomou,Zhou, Yizhou,et al. Effect of orientation on low-cycle fatigue behaviour of single crystal superalloys at 900 degrees C[J]. MATERIALS SCIENCE AND TECHNOLOGY,2019:8.
APA	Li, Peng,Zhou, Bomou,Zhou, Yizhou,&Zhang, Zhefeng.(2019).Effect of orientation on low-cycle fatigue behaviour of single crystal superalloys at 900 degrees C.MATERIALS SCIENCE AND TECHNOLOGY,8.
MLA	Li, Peng,et al."Effect of orientation on low-cycle fatigue behaviour of single crystal superalloys at 900 degrees C".MATERIALS SCIENCE AND TECHNOLOGY (2019):8.