Influences of Re on low-cycle fatigue behaviors of single crystal superalloys at intermediate temperature

doi:10.1016/j.jmst.2019.05.026

IMR OpenIR

	Influences of Re on low-cycle fatigue behaviors of single crystal superalloys at intermediate temperature
	Liu, Liu 1,2; Meng, Jie 1; Liu, Jinlai 1; Zou, Mingke 1; Zhang, Haifeng 3; Sun, Xudong 2; Zhou, Yizhou 1
通讯作者	Meng, Jie(JMeng@imr.ac.cn)
	2019-09-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	35 期号:9 页码:1917-1924
摘要	Low-cycle fatigue behaviors of Ni-base single crystal superalloys containing different Re contents have been investigated at 760 degrees C. During heat treatment, Re retards gamma' phases coarsening and equalizes the distribution of gamma' phases. As Re content increases, fatigue life increases and slip bands distribute more inhomogeneously. Moreover, adding Re not only reduces stacking fault energy of the matrix, but also promotes the element segregation to increase the lattice misfit. However, the larger lattice misfit does not lead to the formation of dislocation networks, but which activates dislocation movement and promotes dislocations cross-slip and climbing movement under high temperature and applied stress. On the other hand, with the addition of Re, cyclic deformation behaviors change from cyclic hardening to cyclic stability, mainly depending on a transformation of deformation mechanisms from slip bands cutting through gamma and gamma phases to stacking faults shearing. (C) 2019 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Single crystal superalloys Low-cycle fatigue Deformation behaviors Deformation mechanisms
资助者	National Natural Science Foundation of China ; Shenyang Science and Technology Project
DOI	10.1016/j.jmst.2019.05.026
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51671188] ; National Natural Science Foundation of China[51571196] ; National Natural Science Foundation of China[51601192] ; Shenyang Science and Technology Project[17-101-2-00]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000475870600013
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：24[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/321006/134618
专题	中国科学院金属研究所
通讯作者	Meng, Jie
作者单位	1.Chinese Acad Sci, Superalloys Div, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Northeastern Univ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Liu, Liu,Meng, Jie,Liu, Jinlai,et al. Influences of Re on low-cycle fatigue behaviors of single crystal superalloys at intermediate temperature[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(9):1917-1924.
APA	Liu, Liu.,Meng, Jie.,Liu, Jinlai.,Zou, Mingke.,Zhang, Haifeng.,...&Zhou, Yizhou.(2019).Influences of Re on low-cycle fatigue behaviors of single crystal superalloys at intermediate temperature.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(9),1917-1924.
MLA	Liu, Liu,et al."Influences of Re on low-cycle fatigue behaviors of single crystal superalloys at intermediate temperature".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.9(2019):1917-1924.