Boride-induced dislocation channeling in a single crystal Ni-based superalloy

doi:10.1016/j.matlet.2018.10.039

CORC > 金属研究所 > 中国科学院金属研究所

	Boride-induced dislocation channeling in a single crystal Ni-based superalloy
	Ge, H. L.1,2; Liu, J. D.3; Zheng, S. J.1; Zhou, Y. T.1; Jin, Q. Q.1; Shao, X. H.1; Zhang, B.1; Zhou, Y. Z.3; Ma, X. L.1,4
刊名	MATERIALS LETTERS
	2019-01-15
卷号	235 页码:232-235
关键词	Ni-based superalloy Creep Boride Dislocation Interface
ISSN号	0167-577X
DOI	10.1016/j.matlet.2018.10.039
通讯作者	Zheng, S. J.(sjzheng@imr.ac.cn) ; Zhou, Y. Z.(yzzhou@imr.ac.cn)
英文摘要	Generally, minor elements such as carbon and boron are added in superalloys to strengthen grain boundaries. However, effects of carbon and boron on single crystal superalloys remain disputed. Here we demonstrate that M23B6 (where M is mixture of W, Mo, Cr and Ni) can induce dislocation channeling in a Ni-based single crystal superalloy. The M23B6 has a cube-on-cube orientation relationship with the matrix, forming a majority of {1 1 1} plane interfaces. Furthermore, the atomic stepped {1 1 1} interface could facilitate dislocation nucleation. Dislocations emitted from the interface glide forward and pile-up in the channel, resulting in strain localization and creep micro-crack initiation. (C) 2018 Elsevier B.V. All rights reserved.
资助项目	Hundred Talents Project of Chinese Academy of Sciences ; Thousand Youth Talents Plan of China ; National Natural Science Foundation of China[51401208] ; National Natural Science Foundation of China[51771201] ; Shenyang National Laboratory for Materials Science[2015RP18] ; Shenyang National Laboratory for Materials Science[2017RP17]
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000448000700057
资助机构	Hundred Talents Project of Chinese Academy of Sciences ; Thousand Youth Talents Plan of China ; National Natural Science Foundation of China ; Shenyang National Laboratory for Materials Science
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/130035]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zheng, S. J.; Zhou, Y. Z.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Liaoning, Peoples R China 4.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Ge, H. L.,Liu, J. D.,Zheng, S. J.,et al. Boride-induced dislocation channeling in a single crystal Ni-based superalloy[J]. MATERIALS LETTERS,2019,235:232-235.
APA	Ge, H. L..,Liu, J. D..,Zheng, S. J..,Zhou, Y. T..,Jin, Q. Q..,...&Ma, X. L..(2019).Boride-induced dislocation channeling in a single crystal Ni-based superalloy.MATERIALS LETTERS,235,232-235.
MLA	Ge, H. L.,et al."Boride-induced dislocation channeling in a single crystal Ni-based superalloy".MATERIALS LETTERS 235(2019):232-235.