Atomic configurations of various kinds of structural intergrowth in the polytypic M2B-type boride precipitated in the Ni-based superalloy

IMR OpenIR

	Atomic configurations of various kinds of structural intergrowth in the polytypic M2B-type boride precipitated in the Ni-based superalloy
	Hu, X. B.; Zhu, Y. L.; Shao, X. H.; Niu, H. Y.; Zhou, L. Z.; Ma, X. L.; xlma@imr.ac.cn
	2015
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	100 页码:64-72
摘要	The heavily faulted M2B-type borides precipitated in the long-term aging Ni-based superalloys with B addition are comprehensively studied at an atomic scale. By means of high angle annular dark field (HAADF) imaging technique in the aberration corrected scanning transmission electron microscope (STEM), atomic configurations of various kinds of structural intergrowth in the profoundly faulted M2B phase are directly imaged. The polytypic M2B phase is mainly composed of C16, C-b and C-a structural variants, in which planar defects and the resultant long period stacking order (LPSO) structure are identified. In combination of the advanced spectrometry imaging technique with density functional theory (DFT) calculations, it is proposed that the polytypic feature is attributed to the conservation of the basic polyhedron of anti-square prisms. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	[hu, x. b. ; zhu, y. l. ; shao, x. h. ; niu, h. y. ; ma, x. l.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china ; [zhou, l. z.] chinese acad sci, inst met res, superalloys div, shenyang 110016, peoples r china
关键词	Ni-based Superalloy Polytypic M2b-type Boride Structural Intergrowth Aberration Corrected Transmission Electron Microscope Atomic Configurations
资助者	National Natural Foundation of China [11327901]; Ministry of Science & Technology of China [2010CB631206, 2009CB623705]
收录类别	sci
语种	英语
WOS记录号	WOS:000362616400007
引用统计	被引频次：23[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/321006/74643
专题	中国科学院金属研究所
通讯作者	xlma@imr.ac.cn
推荐引用方式 GB/T 7714	Hu, X. B.,Zhu, Y. L.,Shao, X. H.,et al. Atomic configurations of various kinds of structural intergrowth in the polytypic M2B-type boride precipitated in the Ni-based superalloy[J]. ACTA MATERIALIA,2015,100:64-72.
APA	Hu, X. B..,Zhu, Y. L..,Shao, X. H..,Niu, H. Y..,Zhou, L. Z..,...&xlma@imr.ac.cn.(2015).Atomic configurations of various kinds of structural intergrowth in the polytypic M2B-type boride precipitated in the Ni-based superalloy.ACTA MATERIALIA,100,64-72.
MLA	Hu, X. B.,et al."Atomic configurations of various kinds of structural intergrowth in the polytypic M2B-type boride precipitated in the Ni-based superalloy".ACTA MATERIALIA 100(2015):64-72.