Shear deformation in TiAl: Atomic dynamic and static simulations
文献类型：期刊论文
| 作者 | Y. L. Liu ; S. Q. Wang ; H. Q. Ye |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2007 |
| 卷号 | 22期号:6页码:1685-1693 |
| 关键词 | gamma-titanium aluminides phase-transformation interfacial energies electron-microscopy alloys microstructure 1st-principles dislocation behavior fracture |
| ISSN号 | 0884-2914 |
| 中文摘要 | The dynamic shear deformation process and the related stacking fault transitions in TiAl have been systematically investigated using both the molecular dynamics and ab initio methods. The details of the dislocation initiation and microstructural evolution are presented, and the concomitant potential energy variation and the radial distribution functions have been analyzed. The results show, interestingly, that some deformation-induced hexagonal close-packed (hcp) structures are metastable, and that a higher velocity field promotes more hcp segments. The phenomena are interpreted based on ab initio calculations of the detailed energy variation at the different fault transition stages, i.e., superlattice intrinsic stacking fault (SISF) -> TWIN, SISF -> hcp, and hcp -> TWIN. The intrinsic factor that governs the deformation process is discussed. The results promote new understanding of the stress-induced interfaces and dislocation behaviors in experimental observations. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33723]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Y. L. Liu,S. Q. Wang,H. Q. Ye. Shear deformation in TiAl: Atomic dynamic and static simulations[J]. Journal of Materials Research,2007,22(6):1685-1693. |
| APA | Y. L. Liu,S. Q. Wang,&H. Q. Ye.(2007).Shear deformation in TiAl: Atomic dynamic and static simulations.Journal of Materials Research,22(6),1685-1693. |
| MLA | Y. L. Liu,et al."Shear deformation in TiAl: Atomic dynamic and static simulations".Journal of Materials Research 22.6(2007):1685-1693. |
入库方式： OAI收割
来源：金属研究所
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