Effect of Orientation on Stress-Rupture Property and Related Deformation Microstructure of a Ni-Base Re-containing Single-Crystal Superalloy at 900 degrees C

doi:10.1007/s40195-020-01131-y

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	Effect of Orientation on Stress-Rupture Property and Related Deformation Microstructure of a Ni-Base Re-containing Single-Crystal Superalloy at 900 degrees C
	Wang, Guang-Lei 1,2; Liu, Jin-Lai 2; Liu, Ji-De 2; Zhou, Yi-Zhou 2; Sun, Xu-Dong 1; Zhang, Hai-Feng 1,2; Sun, Xiao-Feng 2
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2020-10-13
页码	10
关键词	Nickel-base superalloy Stress-rupture property Orientation effect Deformation microstructure Fracture behavior
ISSN号	1006-7191
DOI	10.1007/s40195-020-01131-y
通讯作者	Liu, Jin-Lai(jlliu@imr.ac.cn) ; Liu, Ji-De(jdliu@imr.ac.cn)
英文摘要	Stress-rupture properties of a Ni-base Re-containing single-crystal superalloy with three orientations have been tested under 900 degrees C/445 MPa. An obvious anisotropy of stress-rupture property is attributed to orientation reliant deformation microstructure. The good strength in [001] orientation is attributed to the rapid multiplication of dislocations active in horizontal channels and later gamma'cutting via dislocations pair coupled with anti-phase boundary. The microtwin formation largely limits the strength and plasticity as a result of the continuous shearing across gamma/gamma'microstructure by {111}< 112 & rang; slip activated in [011] orientation. The property in [111] orientation results mainly from the lateral cross-slip movements of the screw dislocations within connected matrix channels as well as the precipitate shearing by coplanar dislocations. Microcracks all initially originate from the interdendritic micropores in three orientations. The critical temperature of stress-rupture anisotropy could be increased by a high level of refractory solutes especially Re.
资助项目	National Key R&D Program of China[2017YFA0700704] ; National Natural Science Foundation of China[51871221] ; National Science and Technology Major Project[2017-VI-0002-0072]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
WOS记录号	WOS:000578860300003
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; National Science and Technology Major Project
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/141034]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Jin-Lai; Liu, Ji-De
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110004, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Guang-Lei,Liu, Jin-Lai,Liu, Ji-De,et al. Effect of Orientation on Stress-Rupture Property and Related Deformation Microstructure of a Ni-Base Re-containing Single-Crystal Superalloy at 900 degrees C[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2020:10.
APA	Wang, Guang-Lei.,Liu, Jin-Lai.,Liu, Ji-De.,Zhou, Yi-Zhou.,Sun, Xu-Dong.,...&Sun, Xiao-Feng.(2020).Effect of Orientation on Stress-Rupture Property and Related Deformation Microstructure of a Ni-Base Re-containing Single-Crystal Superalloy at 900 degrees C.ACTA METALLURGICA SINICA-ENGLISH LETTERS,10.
MLA	Wang, Guang-Lei,et al."Effect of Orientation on Stress-Rupture Property and Related Deformation Microstructure of a Ni-Base Re-containing Single-Crystal Superalloy at 900 degrees C".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2020):10.