The role of Nd solid-solution and grain-boundary segregation in binary NiAl intermetallic compound
文献类型：期刊论文
| 作者 | W. L. Ren ; J. T. Guo ; G. S. Li ; J. Y. Zhou |
| 刊名 | Journal of Materials Science & Technology
 |
| 出版日期 | 2004 |
| 卷号 | 20期号:2页码:163-166 |
| 关键词 | Nd NiAl alloys solid-solution grain-boundary segregation mechanical properties mechanical-properties fracture ni3al microstructure composites alloy |
| ISSN号 | 1005-0302 |
| 中文摘要 | The role of Nd solid-solution and grain-boundary segregation in binary NiAl alloy was studied based on microhardness and compressive macrostrain. X-ray and Auger spectra studies indicate that Nd not only is soluble in grain interiors, but also segregates to the grain boundaries. Nd solid-solution induces an increase of the microhardness from 269 to 290 HV in grain interiors and segregation results in an enhancement of hardness from 252 to 342 HV on grain boundaries. Thus, the cohesion of grain boundaries is enhanced by Nd segregation, which make the alloy doped with 0.05 wt pct Nd exhibit more compressive microstrain, i.e. the higher the compressive ductility at room temperature, the better the final surface condition at elevated temperature. Finally, a discussion was made on the reason that Nd strengthens the grain boundaries in NiAl intermetallic alloy. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35534]  |
| 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 | W. L. Ren,J. T. Guo,G. S. Li,et al. The role of Nd solid-solution and grain-boundary segregation in binary NiAl intermetallic compound[J]. Journal of Materials Science & Technology,2004,20(2):163-166. |
| APA | W. L. Ren,J. T. Guo,G. S. Li,&J. Y. Zhou.(2004).The role of Nd solid-solution and grain-boundary segregation in binary NiAl intermetallic compound.Journal of Materials Science & Technology,20(2),163-166. |
| MLA | W. L. Ren,et al."The role of Nd solid-solution and grain-boundary segregation in binary NiAl intermetallic compound".Journal of Materials Science & Technology 20.2(2004):163-166. |
入库方式： OAI收割
来源：金属研究所
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