Deformation induced twinning and phase transition in an interstitial intermetallic compound niobium boride

doi:10.1016/j.actamat.2018.12.011

CORC > 金属研究所 > 中国科学院金属研究所

	Deformation induced twinning and phase transition in an interstitial intermetallic compound niobium boride
	Jiang, Binbin 4,5; Chen, Chunjin 2,4; Wang, Xuelu 2,4; Wang, Hao 3; Wang, Weizhen 1,4; Ye, Hengqiang 4; Du, Kui 4
刊名	ACTA MATERIALIA
	2019-02-15
卷号	165 页码:459-470
关键词	Twinning Phase transition Stacking faults Interstitial compound Scanning transmission electron microscopy
ISSN号	1359-6454
DOI	10.1016/j.actamat.2018.12.011
通讯作者	Du, Kui(kuidu@imr.ac.cn)
英文摘要	Interstitial compounds are widely used to improve stiffness, modulus, strength and wear resistance of alloys owing to their high strength and stiffness. Understanding defect evolution and phase transformation processes in interstitial compounds during deformation would therefore provide important guidance for further enhancement of alloy properties. Here, we observed and analyzed the various deformation-induced defects in an NbB crystal using aberration-corrected electron microscopy combined with density functional theory simulations. We identified stable defects such as stacking faults and deformation twins on {110} planes, and (020)[101] planar faults. The stability originates from preservation of the dodecahedron building blocks and B-B covalent bonds. In contrast for the case of (020)[100] planer faults, the crystal structure at planar faults is significantly altered and the B-B bonds are broken, resulting in a deformation-induced phase transition from NbB to Nb phase. These results provide insights on the deformation processes of complex interstitial compounds in general. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[51521091] ; National Natural Science Foundation of China[51771203] ; Chinese Academy of Sciences[QYZDJ-SSW-JSC024] ; National Key Research and Development Program of China[2017YFA0700701]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000457665100041
资助机构	National Natural Science Foundation of China ; Chinese Academy of Sciences ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/131757]
专题	金属研究所_中国科学院金属研究所
通讯作者	Du, Kui
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Div Titanium Alloys, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Binbin,Chen, Chunjin,Wang, Xuelu,et al. Deformation induced twinning and phase transition in an interstitial intermetallic compound niobium boride[J]. ACTA MATERIALIA,2019,165:459-470.
APA	Jiang, Binbin.,Chen, Chunjin.,Wang, Xuelu.,Wang, Hao.,Wang, Weizhen.,...&Du, Kui.(2019).Deformation induced twinning and phase transition in an interstitial intermetallic compound niobium boride.ACTA MATERIALIA,165,459-470.
MLA	Jiang, Binbin,et al."Deformation induced twinning and phase transition in an interstitial intermetallic compound niobium boride".ACTA MATERIALIA 165(2019):459-470.