| Deformation induced twinning and phase transition in an interstitial intermetallic compound niobium boride | |
| Jiang, Binbin1,2; Chen, Chunjin1,3; Wang, Xuelu1,3; Wang, Hao4; Wang, Weizhen1,5; Ye, Hengqiang1; Du, Kui1 | |
| Corresponding Author | Du, Kui(kuidu@imr.ac.cn) |
| 2019-02-15 | |
| Source Publication | ACTA MATERIALIA
 |
| ISSN | 1359-6454 |
| Volume | 165Pages:459-470 |
| Abstract | 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. |
| Keyword | Twinning Phase transition Stacking faults Interstitial compound Scanning transmission electron microscopy |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000457665100041 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/131758 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Du, Kui |
| Affiliation | 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 |
| Recommended Citation 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. |
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