Effect of DC electric current on the precipitation of gamma '-phase in a Ni-based single crystal superalloy
文献类型：期刊论文
| 作者 | Li Yingju; Yang Yuansheng; Feng Xiaohui; Zhang Yunan; Hu Zhuangqi |
| 刊名 | ACTA METALLURGICA SINICA
 |
| 出版日期 | 2006-09-01 |
| 卷号 | 42期号:9页码:942-946 |
| 关键词 | Ni-based single crystal superalloy gamma '-phase precipitation DC electric current electromigration cooling rate |
| ISSN号 | 0412-1961 |
| 通讯作者 | Yang Yuansheng(ysyang@imr.ac.cn) |
| 英文摘要 | The effects of DC electric current on the precipitation of gamma'-phase in a Ni-based single crystal superalloy were studied. Under the action of different current densities the superalloy was cooled at different cooling rates after solution heat treatment at 1250 degrees C for 4 h. The experiment results show that the size and volume fraction of gamma'-phase increase with the increase of current density, while the planar density of gamma'-phase decreases at air cooling; under the action of the same current density, the size and volume fraction of gamma'-phase decrease and the planar density of gamma'-phase increases with the increase of cooling rate. It is considered that the electromigration effect induced by the DC current accelerates the diffusion of atoms during gamma'-phase precipitation, which enhances the precipitation of gamma'-phase, and the Joule heat effect produced by the DC current reduces the cooling rate, which speeds up the growth of gamma'-phase. |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000240970500009 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/86995]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yang Yuansheng |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Yingju,Yang Yuansheng,Feng Xiaohui,et al. Effect of DC electric current on the precipitation of gamma '-phase in a Ni-based single crystal superalloy[J]. ACTA METALLURGICA SINICA,2006,42(9):942-946. |
| APA | Li Yingju,Yang Yuansheng,Feng Xiaohui,Zhang Yunan,&Hu Zhuangqi.(2006).Effect of DC electric current on the precipitation of gamma '-phase in a Ni-based single crystal superalloy.ACTA METALLURGICA SINICA,42(9),942-946. |
| MLA | Li Yingju,et al."Effect of DC electric current on the precipitation of gamma '-phase in a Ni-based single crystal superalloy".ACTA METALLURGICA SINICA 42.9(2006):942-946. |
入库方式： OAI收割
来源：金属研究所
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