Influence of alloying elements on the elastic properties of ternary and quaternary nickel-base superalloys
文献类型：期刊论文
| 作者 | Y. J. Wang ; C. Y. Wang |
| 刊名 | Philosophical Magazine
 |
| 出版日期 | 2009 |
| 卷号 | 89期号:32页码:2935-2947 |
| 关键词 | Ni-base superalloys elastic property alloying effect first principles single-crystal superalloys platinum-group metals gamma/gamma'-interface high-temperatures re 1st-principles constants ru stability ruthenium |
| ISSN号 | 1478-6435 |
| 中文摘要 | Using new supercells, the influence of the alloying elements Co, Cr, Ta, Re, and Ru on the elastic properties of ternary and quaternary nickel-base superalloys are systematically studied by the first-principles pseudopotential method. The calculated results of the five ternary and three quaternary superalloys suggest that the alloying elements can increase the elastic moduli. Re is found to be most effective in increasing the moduli of ternary alloys. Among the quaternary alloys, the Ni-Al-Re-Ru system has the largest moduli. Our calculated values of the elastic moduli agree very well with the experimental results. The charge density redistribution and partial density of states are calculated for the quaternary system including both Re and Ru. Covalent-like bonding between Re and its nearest neighbor is observed. The hybridization between the Re-d orbital and the host Ni-p, d orbitals are the origin of the modulus strengthening effect. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32404]  |
| 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. J. Wang,C. Y. Wang. Influence of alloying elements on the elastic properties of ternary and quaternary nickel-base superalloys[J]. Philosophical Magazine,2009,89(32):2935-2947. |
| APA | Y. J. Wang,&C. Y. Wang.(2009).Influence of alloying elements on the elastic properties of ternary and quaternary nickel-base superalloys.Philosophical Magazine,89(32),2935-2947. |
| MLA | Y. J. Wang,et al."Influence of alloying elements on the elastic properties of ternary and quaternary nickel-base superalloys".Philosophical Magazine 89.32(2009):2935-2947. |
入库方式： OAI收割
来源：金属研究所
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