Microstructure of Carbides at Grain Boundaries in Nickel Based Superalloys
文献类型：期刊论文
| 作者 | X. M. Dong ; X. L. Zhang ; K. Du ; Y. Z. Zhou ; T. Jin ; H. Q. Ye |
| 刊名 | Journal of Materials Science & Technology
 |
| 出版日期 | 2012 |
| 卷号 | 28期号:11页码:1031-1038 |
| 关键词 | Electron microscopy Ni based superalloys Grain boundaries Orientation relationship primary mc carbide creep-properties sx-superalloys decomposition rupture rr2072 |
| ISSN号 | 1005-0302 |
| 中文摘要 | It is well known that carbides at grain boundaries play an important role in affecting mechanical properties of nickel based superalloys. In order to deeply understand the relationship between grain boundary structures and properties, in this work, we have investigated the microstructure of grain boundaries with different misorientation angles in bicrystals of nickel based superalloys. It is found that the bicrystals with smaller misorientation angles contain denser M23C6 but sparse MC particles at grain boundaries, and this kind of bicrystals presents longer stress rupture lives. It was observed that MC carbides were decorated by M23C6 and M6C particles at grain boundaries. The formation of these carbide particles, therefore, is likely due to the local fluctuation of chemical composition around MC carbides. In addition, the orientation relationships between MC carbides and gamma/gamma' matrix were also determined. |
| 原文出处 | |
| 公开日期 | 2013-02-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/59930]  |
| 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 | X. M. Dong,X. L. Zhang,K. Du,et al. Microstructure of Carbides at Grain Boundaries in Nickel Based Superalloys[J]. Journal of Materials Science & Technology,2012,28(11):1031-1038. |
| APA | X. M. Dong,X. L. Zhang,K. Du,Y. Z. Zhou,T. Jin,&H. Q. Ye.(2012).Microstructure of Carbides at Grain Boundaries in Nickel Based Superalloys.Journal of Materials Science & Technology,28(11),1031-1038. |
| MLA | X. M. Dong,et al."Microstructure of Carbides at Grain Boundaries in Nickel Based Superalloys".Journal of Materials Science & Technology 28.11(2012):1031-1038. |
入库方式： OAI收割
来源：金属研究所
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