Concentration of point defects and site occupancy behavior in ternary NiAl alloys
文献类型：期刊论文
| 作者 | Hao, YL; Yang, R; Song, Y; Cui, YY; Li, D; Niinomi, M |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2004-01-25 |
| 卷号 | 365期号:1-2页码:85-89 |
| 关键词 | site occupancy point defect NiAl intermetallics |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2003.09.010 |
| 通讯作者 | Yang, R(ryang@imr.ac.cn) |
| 英文摘要 | A model was established under the mean-field first nearest neighbor interaction approximation to evaluate the concentration of point defects and the site occupancy of micro alloyed NiAl. The theoretical results suggest that micro alloying has only slight effect on point defect formation. The vacancy concentration decreases in both the Al-rich and the Ni-rich alloys as compared to binary alloys, while the concentration of the Al anti-site defects increases and that of the Ni anti-site defects decreases by about half the difference of vacancy concentration between the binary and ternary systems on the Al- and Ni-rich sides, respectively. At low concentration, Ga, Si, Ge, Ti, V, Zr, Nb, Hf and Ta occupy the Al sublattice, whereas Mn, Fe and Co occupy the Ni sublattice; the dependence of occupancy on composition and temperature is weak. By contrast, the site preference of Mo, W and Cr changes considerably with alloy chemistry and temperature and they show strong tendency to occupy both sublattices at high temperature. In general, with increasing atomic number, transition metal elements in the same period increasingly tend to substitute for Ni. (C) 2003 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000187972000012 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.imr.ac.cn/handle/321006/118408]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yang, R |
| 作者单位 | 1.Toyohashi Univ Technol, Dept Prod Syst Engn, Toyohashi, Aichi 4418580, Japan 2.Chinese Acad Sci, Titanium Alloy Lab, Met Res Inst, Shenyang 110016, Peoples R China 3.Univ London Queen Mary Coll, Dept Mat, London E1 4NS, England |
| 推荐引用方式 GB/T 7714 | Hao, YL,Yang, R,Song, Y,et al. Concentration of point defects and site occupancy behavior in ternary NiAl alloys[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2004,365(1-2):85-89. |
| APA | Hao, YL,Yang, R,Song, Y,Cui, YY,Li, D,&Niinomi, M.(2004).Concentration of point defects and site occupancy behavior in ternary NiAl alloys.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,365(1-2),85-89. |
| MLA | Hao, YL,et al."Concentration of point defects and site occupancy behavior in ternary NiAl alloys".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 365.1-2(2004):85-89. |
入库方式： OAI收割
来源：金属研究所
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