Dislocation dipole-induced strengthening in intermetallic TiAl
文献类型：期刊论文
| 作者 | He, Y; Liu, Z; Zhou, G; Wang, H; Bai, CG; Rodney, D; Appel, F; Xu, DS; Yang, R; Wang, H (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China. |
| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2018-01-15 |
| 卷号 | 143页码:98-102 |
| 关键词 | Activation-relaxation Technique Characterizing Faulted Dipoles Atomistic Simulations Titanium Aluminides Deformation Transformation Dynamics Tensile Alloys |
| ISSN号 | 1359-6462 |
| 英文摘要 | Narrow dislocation dipoles in intermetallic TiAl are systematically investigated by atomic-scale simulations and electron microscopy. The formation energy of narrow dipolar configurations and the activation energy during their evolution are unraveled. We show that faulted dipoles can be stable over experimental timescales, in full agreement with high-resolution observations. Such stable atomic-scale structures provide a strengthening effect significantly larger than the elastic prediction, which deeply influences plasticity in TiAl. (C) 2017 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.; Narrow dislocation dipoles in intermetallic TiAl are systematically investigated by atomic-scale simulations and electron microscopy. The formation energy of narrow dipolar configurations and the activation energy during their evolution are unraveled. We show that faulted dipoles can be stable over experimental timescales, in full agreement with high-resolution observations. Such stable atomic-scale structures provide a strengthening effect significantly larger than the elastic prediction, which deeply influences plasticity in TiAl. (C) 2017 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved. |
| 学科主题 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 资助机构 | National Key Research and Development Program of China [2016YFB0701304]; Natural Science Foundation of China [51671195]; Youth Innovation Promotion Association of Chinese Academy of Sciences [2015151] |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79582]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, H (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China. |
| 推荐引用方式 GB/T 7714 | He, Y,Liu, Z,Zhou, G,et al. Dislocation dipole-induced strengthening in intermetallic TiAl[J]. SCRIPTA MATERIALIA,2018,143:98-102. |
| APA | He, Y.,Liu, Z.,Zhou, G.,Wang, H.,Bai, CG.,...&Wang, H .(2018).Dislocation dipole-induced strengthening in intermetallic TiAl.SCRIPTA MATERIALIA,143,98-102. |
| MLA | He, Y,et al."Dislocation dipole-induced strengthening in intermetallic TiAl".SCRIPTA MATERIALIA 143(2018):98-102. |
入库方式： OAI收割
来源：金属研究所
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