Composition design study of strong and ductile Mo-alloyed CoCrNi medium-entropy alloys
文献类型：期刊论文
| 作者 | Yan, J. X.1; Qin, J. Y.1; Liu, J. H.2; Chen, H.1; Huang, Y. H.1; Liu, M.1; Xia, C. H.1; Wang, F.1; Cui, X. D.1,3; Yang, J. B.4 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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| 出版日期 | 2024-07-01 |
| 卷号 | 186页码:37-47 |
| 关键词 | Medium-entropy alloys First-principles calculations Stacking-fault energy Solute strengthening Deformation twinning Mechanical properties |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2023.10.050 |
| 通讯作者 | Cui, X. D.(xudcui@caep.cn) ; Yang, J. B.(jbyang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 英文摘要 | The assistance of alloying elements provides enormous opportunities for the discovery of highperformance face-centered cubic (FCC) medium-entropy alloys (MEAs). In this work, the influence of alloying element Mo on the phase stability, stacking fault energy (SFE), deformation mechanisms, lattice distortion, and mechanical properties of (CoCrNi)(100-x )Mox (0 <= x <= 10) MEAs was synthetically explored with the first-principles calculations. It indicates that the FCC phase remains metastable at 0 K, and its stability degenerates with increasing Mo content. The monotonous decrease of SFE is revealed with the rise of Mo content, which promotes the activation of stacking faults, deformation twinning, or martensitic transformation. Raising Mo content also causes the aggravation of lattice distortion and thus triggers intense solid solution strengthening. Significantly, the essential criterion for the composition design of FCC (CoCrNi)100-x Mo MEAs with superior strength-ductility combination was established based on the synergistic effects between multiple deformation mechanisms and solid solution strengthening. According to the criterion, the optimal composition is predetermined as (CoCrNi)(93) Mo-7 MEA. The criterion is proved to be effective, and it can provide valuable inspiration for the development of alloying-element reinforced FCC multi-principal element alloys. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[52071316] ; Youth Project of Science and Tech-nology Research Program of Chongqing Municipal Education Commission[KJQN202300755] ; Natural Science Foundation of Chongqing[cstc2021jcyj-msxmX0697] ; Project of Science Foundation in Chongqing Jiaotong University[F1210023] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001155657600001 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Youth Project of Science and Tech-nology Research Program of Chongqing Municipal Education Commission ; Natural Science Foundation of Chongqing ; Project of Science Foundation in Chongqing Jiaotong University |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Cui, X. D.; Yang, J. B.; Zhang, Z. F. |
| 作者单位 | 1.Chongqing Jiaotong Univ, Sch Mat Sci & Engn, Chongqing 400074, Peoples R China 2.Southwest Technol & Engn Res Inst, Chongqing 400039, Peoples R China 3.China Acad Engn Phys, Inst Chem Mat, Mianyang 621900, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, J. X.,Qin, J. Y.,Liu, J. H.,et al. Composition design study of strong and ductile Mo-alloyed CoCrNi medium-entropy alloys[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2024,186:37-47. |
| APA | Yan, J. X..,Qin, J. Y..,Liu, J. H..,Chen, H..,Huang, Y. H..,...&Zhang, Z. F..(2024).Composition design study of strong and ductile Mo-alloyed CoCrNi medium-entropy alloys.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,186,37-47. |
| MLA | Yan, J. X.,et al."Composition design study of strong and ductile Mo-alloyed CoCrNi medium-entropy alloys".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 186(2024):37-47. |
入库方式： OAI收割
来源：金属研究所
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