Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C

doi:10.1016/j.msea.2018.07.078

IMR OpenIR

	Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C
	Liu, Liu 1,2; Meng, Jie 2; Liu, Jinlai 2; Zhang, Haifeng 1,3; Sun, Xudong 1; Zhou, Yizhou 2
通讯作者	Meng, Jie(jmeng@imr.ac.cn)
	2018-09-12
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	734 页码:1-6
摘要	Low cycle fatigue behaviors of a 3Re Ni-base single crystal superalloy with the [001] and [011] orientations have been investigated. At 760 degrees C, both the [001] and [011] specimens fracture along crystallographic planes. However, the results also indicate a large difference in fatigue deformation behaviors of these two oriented specimens, which is reflected in different deformation mechanisms. For the cyclic stability behavior of the [001] specimens, uneven cross-slip and tangled dislocations and continuous stacking faults cause local stress concentration in the matrix and have an influence on work hardening, while the stress concentration is reduced by dislocation pairs and stacking faults shearing gamma' phases. With respect to the [011] specimens, high density matrix dislocations, parallel dislocations and secondary cracks increase resistance to dislocation movement, resulting in cyclic hardening. We discovered continuous stacking faults that have been rarely reported in the low cycle fatigue. Also, these findings might bring about substantial insights that fatigue fracture and deformation mechanisms are responsible for low cycle fatigue anisotropy at intermediate temperature.
关键词	Single crystal superalloy Low cycle fatigue Anisotropy Deformation mechanism
资助者	National Natural Science Foundation of China ; Shenyang Science and Technology Project
DOI	10.1016/j.msea.2018.07.078
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51571196] ; National Natural Science Foundation of China[51671188] ; National Natural Science Foundation of China[5160119] ; Shenyang Science and Technology Project[17-101-2-00]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000445993900001
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：27[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/321006/129601
专题	中国科学院金属研究所
通讯作者	Meng, Jie
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Liu, Liu,Meng, Jie,Liu, Jinlai,et al. Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2018,734:1-6.
APA	Liu, Liu,Meng, Jie,Liu, Jinlai,Zhang, Haifeng,Sun, Xudong,&Zhou, Yizhou.(2018).Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,734,1-6.
MLA	Liu, Liu,et al."Investigation on low cycle fatigue behaviors of the [001] and [011] oriental single crystal superalloy at 760 degrees C".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 734(2018):1-6.