| Intergrowth of C phase within μ phase in a Re-containing Ni-base single crystal superalloy | |
| Alternative Title | Intergrowth of C phase within μ phase in a Re-containing Ni-base single crystal superalloy |
| Gao Shuang; Zhou Yizhou; Liu Zhiquan; Jin Tao | |
| 2018 | |
| Source Publication | Journal of Materials Science & Technology
 |
| ISSN | 1005-0302 |
| Volume | 34Issue:5Pages:806-810 |
| Abstract | Precipitation of topologically close-packed phases in a Re-containing Ni-base single crystal superalloy was studied under elevated temperature by in situ transmission electron microscopy. Above 1150 °C, a new intergrowth structure called C phase was found within μ phase with a defined crystallographic orientation relationship. Elements mapping analysis reveals that C phase has a similar element composition as μ phase, but contains a lower level of Cr, W and Re. With increasing temperature, the proportion of C phase increases gradually. At 1250 °C, C phase becomes the dominant precipitate. It is demonstrated that C phase is more thermodynamically stable than μ phase above 1150 °C that leads to an intergrowth pathway from μ phase to C phase. |
| Other Abstract | Precipitation of topologically close-packed phases in a Re-containing Ni-base single crystal superalloy was studied under elevated temperature by in situ transmission electron microscopy. Above 1150 ?C, a new intergrowth structure called C phase was found within μ phase with a defined crystallographic orientation relationship. Elements mapping analysis reveals that C phase has a similar element composition as μ phase, but contains a lower level of Cr, W and Re. With increasing temperature, the proportion of C phase increases gradually. At 1250 ?C, C phase becomes the dominant precipitate. It is demonstrated that C phase is more thermodynamically stable than μ phase above 1150 ?C that leads to an intergrowth pathway from μ phase to C phase. |
| Keyword | Ni-base superalloy Phase transformation Precipitation |
| Indexed By | CSCD |
| Language | 英语 |
| CSCD ID | CSCD:6240454 |
| Citation statistics |
Cited Times:2[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/152212 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 中国科学院金属研究所 |
| Recommended Citation GB/T 7714 | Gao Shuang,Zhou Yizhou,Liu Zhiquan,et al. Intergrowth of C phase within μ phase in a Re-containing Ni-base single crystal superalloy[J]. Journal of Materials Science & Technology,2018,34(5):806-810. |
| APA | Gao Shuang,Zhou Yizhou,Liu Zhiquan,&Jin Tao.(2018).Intergrowth of C phase within μ phase in a Re-containing Ni-base single crystal superalloy.Journal of Materials Science & Technology,34(5),806-810. |
| MLA | Gao Shuang,et al."Intergrowth of C phase within μ phase in a Re-containing Ni-base single crystal superalloy".Journal of Materials Science & Technology 34.5(2018):806-810. |
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