Effect of Cr content on mechanical alloying of Ni-Al(Cr) alloy
文献类型：期刊论文
| 作者 | J. T. Guo ; F. B. Yang ; G. S. Li ; J. Y. Zhou |
| 刊名 | International Journal of Materials & Product Technology
 |
| 出版日期 | 2001 |
| 页码 | 167-172 |
| 关键词 | intermetallics mechanical alloying NiAl nanocrystalline |
| ISSN号 | 0268-1900 |
| 中文摘要 | Ternary Ni-Al-Cr mixed elemental powders with different Cr-additions are mechanically alloyed in a high-energy ball mill. The effects of Cr substitution for Al on both mechanical alloying process and final products of NiAl alloys have been systematically investigated. The results show that the MA process can enhance solid solubility of Cr in NiAl greatly resulting in the formation of nanocrystalline beta-NiAl(Cr) composites. The reaction mechanism of MA Ni-50-Al-45-Cr-5 powder belongs to the explosive reaction, while adding 10at.%Cr or higher changes the reaction mechanism from explosive to interdiffusion. Adding 20at.%Cr or more results in the formation of the totally disorder NiAl(Cr) compound after 20h milling. Upon heat, final products (beta-NiAl(Cr)) of three kind of powders Ni-50-Al50-xCrx (X=5, 10, 15) were stable below 1273K, but the final products of Ni-50-Al-30-Cr-20, Ni-50-Al-25-Cr-25 milled powders were decomposed into three phases of beta-NiAl(Cr),gamma'-Ni-3(Al,Cr) and alpha-Cr at high temperature. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/36652]  |
| 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 | J. T. Guo,F. B. Yang,G. S. Li,et al. Effect of Cr content on mechanical alloying of Ni-Al(Cr) alloy[J]. International Journal of Materials & Product Technology,2001:167-172. |
| APA | J. T. Guo,F. B. Yang,G. S. Li,&J. Y. Zhou.(2001).Effect of Cr content on mechanical alloying of Ni-Al(Cr) alloy.International Journal of Materials & Product Technology,167-172. |
| MLA | J. T. Guo,et al."Effect of Cr content on mechanical alloying of Ni-Al(Cr) alloy".International Journal of Materials & Product Technology (2001):167-172. |
入库方式： OAI收割
来源：金属研究所
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