Molecular dynamics study of the shear deformation in TiAl/Ti(3)Al system
文献类型：期刊论文
| 作者 | Y. L. Liu ; X. Zhao ; Z. N. Zhang ; L. Zhang ; S. Q. Wang ; H. Q. Ye |
| 刊名 | Acta Physica Sinica
 |
| 出版日期 | 2009 |
| 卷号 | 58期号:6页码:S246-S253 |
| 关键词 | TiAl/T(3)Al molecular dynamics simulation shear deformation fault structure gamma-titanium aluminides phase-transformation interfacial energies electron-microscopy alloys microstructure 1st-principles simulations behavior fracture |
| ISSN号 | 1000-3290 |
| 中文摘要 | The dynamical shear deformation induced hexagonal close-packed (HCP) <-> face-centred cubic (FCC) processes in TiAl/Ti(3)Al system are investigated by the molecular dynamics method. The details of the dislocation initiation, the microstructure evolution and the force field effect are presented and discussed. The analyses of the potential variation and the structural snapshots show that the shear deformation is related to the "stick-slip" behaviour. The interface can transit the energy and counterpoise the deformation between the hetero-phases. The HCP-Ti(3)Al (FCC-TiAl) shows obvious (little) covariant deformation stage before the initiation of the fault transition. For HCP-Ti(3)Al, the final structure is the continued FCC stacking in a region with the large force field, and the FCC and HCP plates alternatively occur near the interface. For FCC-TiAl, twin and SISF are the main remnants, and the meta-stable HCP phase may occur with the increment of the force field. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32135]  |
| 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,X. Zhao,Z. N. Zhang,et al. Molecular dynamics study of the shear deformation in TiAl/Ti(3)Al system[J]. Acta Physica Sinica,2009,58(6):S246-S253. |
| APA | Y. L. Liu,X. Zhao,Z. N. Zhang,L. Zhang,S. Q. Wang,&H. Q. Ye.(2009).Molecular dynamics study of the shear deformation in TiAl/Ti(3)Al system.Acta Physica Sinica,58(6),S246-S253. |
| MLA | Y. L. Liu,et al."Molecular dynamics study of the shear deformation in TiAl/Ti(3)Al system".Acta Physica Sinica 58.6(2009):S246-S253. |
入库方式： OAI收割
来源：金属研究所
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