First-principles study of deformation-induced phase transformations in Ti-Al intermetallics
文献类型：期刊论文
| 作者 | C. L. Chen ; W. Lu ; L. L. He ; H. Q. Ye |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2009 |
| 卷号 | 24期号:5页码:1662-1666 |
| 关键词 | gamma-titanium aluminides electronic-structure shear deformation crystal-structure alloy stability microstructure exchange energy ti3al |
| ISSN号 | 0884-2914 |
| 中文摘要 | The structural phase stability and electronic properties of the Ti-Al intermetallic compounds were investigated by means of density-functional theory (DFT) calculations in a generalized gradient approximation. Through comparison of the calculated formation energies of the parent and product phases, an in-depth theoretical understanding of the deformation-induced gamma -> alpha(2) phase transitions observed previously in TiAl alloys was achieved. The fort-nation energy plays an important role in evaluating the feasibility of these phase transformations during plastic deformation of TiAl alloys. In addition, the density of states (DOS) was also calculated and used to analyze the stability of Ti-Al intermetallic compounds. The reasons for the absence of the deformation-induced (DI)-alpha(2) and DI-gamma (L1(2)) phases in underformed TiAl alloys were analyzed. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31819]  |
| 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 | C. L. Chen,W. Lu,L. L. He,et al. First-principles study of deformation-induced phase transformations in Ti-Al intermetallics[J]. Journal of Materials Research,2009,24(5):1662-1666. |
| APA | C. L. Chen,W. Lu,L. L. He,&H. Q. Ye.(2009).First-principles study of deformation-induced phase transformations in Ti-Al intermetallics.Journal of Materials Research,24(5),1662-1666. |
| MLA | C. L. Chen,et al."First-principles study of deformation-induced phase transformations in Ti-Al intermetallics".Journal of Materials Research 24.5(2009):1662-1666. |
入库方式： OAI收割
来源：金属研究所
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