Incommensurate modulated structure and nano-sized γ′ phase induced by Fe during creep at 650 degree celsius in Nickel-based model alloys
文献类型：期刊论文
| 作者 | Li, Shaowei1,2; Liu, Fang2,3; Si, Tianxiao2; Sun, Wenru2,3 |
| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2024-04-01 |
| 卷号 | 243页码:7 |
| 关键词 | Model alloys gamma'phase Incommensurate modulated structure Dislocations Creep properties |
| ISSN号 | 1359-6462 |
| DOI | 10.1016/j.scriptamat.2024.115995 |
| 通讯作者 | Liu, Fang(fangliu@imr.ac.cn) ; Sun, Wenru(wrsun@imr.ac.cn) |
| 英文摘要 | As one of the most important matrix elements in superalloys, Fe has attracted great attention due to its low cost and significant impact on mechanical performance. Herein, the effects of Fe on microstructures and creep properties (650 degrees C/120 MPa) of Ni-based model alloys were investigated. Compared with Ni-17Cr-1.7Al (wt.%, called 0Fe alloy) alloy, the addition of Fe decreases the lattice misfit between gamma and gamma ' and promotes the precipitation of nano-sized gamma ' phase, thereby inhibiting dislocations slip and improving creep properties. Surprisingly, a few nano-scale incommensurate modulated domains are detected only in Ni-17Cr-15Fe-1.5Al (wt.%, called 15Fe alloy) alloy. The precipitation of gamma ' phase and the segregated Fe atoms suggest that the incommensurate modulated structures are induced by alternated process of dislocation slip and climb during creep. The present work provides crucial insights into the mechanism of Fe influencing microstructures and creep properties of the designed alloys. |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001172004700001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, Fang; Sun, Wenru |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.72 Wenhua Rd, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Shaowei,Liu, Fang,Si, Tianxiao,et al. Incommensurate modulated structure and nano-sized γ′ phase induced by Fe during creep at 650 degree celsius in Nickel-based model alloys[J]. SCRIPTA MATERIALIA,2024,243:7. |
| APA | Li, Shaowei,Liu, Fang,Si, Tianxiao,&Sun, Wenru.(2024).Incommensurate modulated structure and nano-sized γ′ phase induced by Fe during creep at 650 degree celsius in Nickel-based model alloys.SCRIPTA MATERIALIA,243,7. |
| MLA | Li, Shaowei,et al."Incommensurate modulated structure and nano-sized γ′ phase induced by Fe during creep at 650 degree celsius in Nickel-based model alloys".SCRIPTA MATERIALIA 243(2024):7. |
入库方式： OAI收割
来源：金属研究所
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