Suppressing γ ′ precipitates coarsening at high volume fractions in a NiCoCr alloy by synergy of Co and Cr
文献类型：期刊论文
| 作者 | Yuan, S. Y.1; Yang, Y. Q.1; Zhang, B. B.2; Wang, K. G.3; Zhu, Y. T.4; Li, X. Y.2,5; Zhang, Y.1 |
| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2025-04-01 |
| 卷号 | 259页码:7 |
| 关键词 | High/Medium entropy alloy Coarsening kinetics Thermal stability gamma ' precipitates Diffusion |
| ISSN号 | 1359-6462 |
| DOI | 10.1016/j.scriptamat.2025.116561 |
| 通讯作者 | Li, X. Y.(xyli@imr.ac.cn) ; Zhang, Y.(yong@njust.edu.cn) |
| 英文摘要 | In this work, we investigated coarsening kinetics of gamma ' precipitates at 800-950 degrees C of a novel NiCoCr multicomponent alloy, which was designed to contain a high (Co+Cr) concentration and a high volume fraction of gamma ' precipitates. Experimental results demonstrated that gamma ' precipitates in the present NiCoCr alloy were more resistant to the thermal coarsening at temperatures above 900 degrees C as compared to conventional Ni-based alloys. Analysis using the modified Lifshitz-Slyozov-Wagner (LSW) model revealed that both Co and Cr could serve as the dominating species to control gamma ' precipitate coarsening. The synergy of Co and Cr led to the slower diffusion in the current NiCoCr alloy than those in dilute binary systems, responsible for the superior thermal stability of gamma ' precipitates. Our work provides a new guideline for exploring the compositional space of NiCoCr-based multi- component alloys with high volume fraction of gamma ' precipitates but low gamma ' coarsening rate. |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001410667300001 |
| 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 | Li, X. Y.; Zhang, Y. |
| 作者单位 | 1.Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Florida Inst Technol, Mech & Civil Engn Dept, Melbourne, FL 32901 USA 4.City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong 999077, Peoples R China 5.Liaoning Acad Mat, Shenyang 110167, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, S. Y.,Yang, Y. Q.,Zhang, B. B.,et al. Suppressing γ ′ precipitates coarsening at high volume fractions in a NiCoCr alloy by synergy of Co and Cr[J]. SCRIPTA MATERIALIA,2025,259:7. |
| APA | Yuan, S. Y..,Yang, Y. Q..,Zhang, B. B..,Wang, K. G..,Zhu, Y. T..,...&Zhang, Y..(2025).Suppressing γ ′ precipitates coarsening at high volume fractions in a NiCoCr alloy by synergy of Co and Cr.SCRIPTA MATERIALIA,259,7. |
| MLA | Yuan, S. Y.,et al."Suppressing γ ′ precipitates coarsening at high volume fractions in a NiCoCr alloy by synergy of Co and Cr".SCRIPTA MATERIALIA 259(2025):7. |
入库方式： OAI收割
来源：金属研究所
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