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

doi:10.1016/j.actamat.2018.12.011

IMR OpenIR

	Deformation induced twinning and phase transition in an interstitial intermetallic compound niobium boride
	Jiang, Binbin 1,2; Chen, Chunjin 1,3; Wang, Xuelu 1,3; Wang, Hao 4; Wang, Weizhen 1,5; Ye, Hengqiang 1; Du, Kui 1
通讯作者	Du, Kui(kuidu@imr.ac.cn)
	2019-02-15
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	165 页码:459-470
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.
关键词	Twinning Phase transition Stacking faults Interstitial compound Scanning transmission electron microscopy
资助者	National Natural Science Foundation of China ; Chinese Academy of Sciences ; National Key Research and Development Program of China
DOI	10.1016/j.actamat.2018.12.011
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000457665100041
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：8[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/321006/131758
专题	中国科学院金属研究所
通讯作者	Du, Kui
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei, Anhui, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Div Titanium Alloys, Shenyang 110016, Peoples R China 5.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Liaoning, 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.