Theoretical investigation of ductilizing effects of alloying elements on TiAl
文献类型：期刊论文
| 作者 | Y. Song ; D. S. Xu ; R. Yang ; D. Li ; Z. Q. Hu |
| 刊名 | Intermetallics
 |
| 出版日期 | 1998 |
| 卷号 | 6期号:3页码:157-165 |
| 关键词 | titanium aluminides based on TIAl alloy design electronic structure of metals and alloys electronic structure calculation deformation-behavior base alloys compound phase cr dissociation temperature transition mechanisms additions |
| ISSN号 | 0966-9795 |
| 中文摘要 | In this paper, the electronic structure of ternary TiAl-based alloys was calculated by using the discrete variational Xa cluster method. From the calculations, three parameters, the bond strength, the anisotropy of bond strength and the resistance of the lattice to dislocation motion, were defined to investigate the effects of alloying elements on the ductility of TiAl. The results of calculation show that the resistance of the lattice to dislocation motion is increased by most alloying elements, resulting in an increase of the yield strength of the alloyed compounds. The alloying elements Sc, V, Cr, Mn, Zr, Nb and Mo reduce the resistance of the lattice to 1/2<110] ordinary dislocations relative to <011] superdislocations. The relevance of these results to the ductilization of TiAl is discussed. (C) 1997 Elsevier Science Limited. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37774]  |
| 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. Song,D. S. Xu,R. Yang,et al. Theoretical investigation of ductilizing effects of alloying elements on TiAl[J]. Intermetallics,1998,6(3):157-165. |
| APA | Y. Song,D. S. Xu,R. Yang,D. Li,&Z. Q. Hu.(1998).Theoretical investigation of ductilizing effects of alloying elements on TiAl.Intermetallics,6(3),157-165. |
| MLA | Y. Song,et al."Theoretical investigation of ductilizing effects of alloying elements on TiAl".Intermetallics 6.3(1998):157-165. |
入库方式： OAI收割
来源：金属研究所
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