Atomic configurations of planar defects in mu phase in Ni-based superalloys

doi:10.1016/j.scriptamat.2020.09.045

IMR OpenIR

	Atomic configurations of planar defects in mu phase in Ni-based superalloys
	Cheng, Yongxin 1,2; Wang, Guanglei 3; Liu, Jide 3; He, Lianlong 1
通讯作者	He, Lianlong(llhe@imr.ac.cn)
	2021-03-01
发表期刊	SCRIPTA MATERIALIA
ISSN	1359-6462
卷号	193 页码:27-32
摘要	mu topologically close-packed phase commonly forms in superalloys and its intrinsic deformation is critical for their performance. Atomic configurations of planar defects in mu phase have been investigated by aberration-corrected scanning transmission electron microscopy and geometrical structure analysis. It is found that the basal slip in mu phase is accomplished by synchroshear inside Laves triple-layers, whereas shear deformations on non-basal planes are associated with long-range diffusions or local atomic rearrangements. Distinct from that on (1 (1) over bar 02) pyramidal planes, displacement vectors of planar faults on ( 1 (1) over bar 101) pyramidal planes deviate from the slip plane, leading to the contraction or dilation faulted regions. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
关键词	mu phase Planar defects HAADF-STEM Displacement vectors Atomic configurations
资助者	National Natural Science Foundation of China ; Dong Fang Turbine Co., Ltd
DOI	10.1016/j.scriptamat.2020.09.045
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51831001] ; Dong Fang Turbine Co., Ltd
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:000591503400006
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：11[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/321006/158682
专题	中国科学院金属研究所
通讯作者	He, Lianlong
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Superalloys Div, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Yongxin,Wang, Guanglei,Liu, Jide,et al. Atomic configurations of planar defects in mu phase in Ni-based superalloys[J]. SCRIPTA MATERIALIA,2021,193:27-32.
APA	Cheng, Yongxin,Wang, Guanglei,Liu, Jide,&He, Lianlong.(2021).Atomic configurations of planar defects in mu phase in Ni-based superalloys.SCRIPTA MATERIALIA,193,27-32.
MLA	Cheng, Yongxin,et al."Atomic configurations of planar defects in mu phase in Ni-based superalloys".SCRIPTA MATERIALIA 193(2021):27-32.