Intergrowth of C phase within mu phase in a Re-containing Ni-base single crystal superalloy
文献类型：期刊论文
| 作者 | Gao, S; Zhou, YZ; Liu, ZQ; Jin, T; Liu, ZQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China. |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 34期号:5页码:806-810 |
| 关键词 | Nickel-based Superalloys Close-packed Phase Rhenium Additions Creep Resistance Precipitation Cmsx-4 Co7w6 |
| ISSN号 | 1005-0302 |
| 英文摘要 | 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 degrees C, a new intergrowth structure called C phase was found within mu phase with a defined crystallographic orientation relationship. Elements mapping analysis reveals that C phase has a similar element composition as mu phase, but contains a lower level of Cr, W and Re. With increasing temperature, the proportion of C phase increases gradually. At 1250 degrees C, C phase becomes the dominant precipitate. It is demonstrated that C phase is more thermodynamically stable than mu phase above 1150 degrees C that leads to an intergrowth pathway from mu phase to C phase. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.; 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 degrees C, a new intergrowth structure called C phase was found within mu phase with a defined crystallographic orientation relationship. Elements mapping analysis reveals that C phase has a similar element composition as mu phase, but contains a lower level of Cr, W and Re. With increasing temperature, the proportion of C phase increases gradually. At 1250 degrees C, C phase becomes the dominant precipitate. It is demonstrated that C phase is more thermodynamically stable than mu phase above 1150 degrees C that leads to an intergrowth pathway from mu phase to C phase. (C) 2017 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 学科主题 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 资助机构 | National Natural Science Foundation of China [51271186]; Hundred Talents Program of the Chinese Academy of Sciences |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79332]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhou, YZ; Liu, ZQ (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Gao, S,Zhou, YZ,Liu, ZQ,et al. Intergrowth of C phase within mu phase in a Re-containing Ni-base single crystal superalloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2018,34(5):806-810. |
| APA | Gao, S,Zhou, YZ,Liu, ZQ,Jin, T,&Liu, ZQ .(2018).Intergrowth of C phase within mu phase in a Re-containing Ni-base single crystal superalloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,34(5),806-810. |
| MLA | Gao, S,et al."Intergrowth of C phase within mu phase in a Re-containing Ni-base single crystal superalloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 34.5(2018):806-810. |
入库方式： OAI收割
来源：金属研究所
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