| The microstructures and mechanical properties of CoNiCrx medium-entropy alloys | |
Wu, Haibin1; Wang, Weili1; Liu TW(刘天威)2 ; Yan, Pengxu1; Ren, Wei1,3; Chen, Jian4
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| Corresponding Author | Wang, Weili([email protected]) ; Ren, Wei([email protected]) |
| Source Publication | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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| 2024 | |
| Volume | 891Pages:13 |
| ISSN | 0921-5093 |
| Abstract | The CoNiCrx (x = 1, 1.4, 1.8, and 2) medium-entropy alloys were synthesized by vacuum arc-melting method to systematically investigate the roles of Cr on microstructures and mechanical properties. The results of microstructural characteristics indicated that both CoNiCr and CoNiCr1.4 alloys have a single face-centered cubic (FCC) structure, while CoNiCr1.8 and CoNiCr2 alloys consist of FCC plus body-centered cubic (BCC) hypoeutectic and eutectic. The formation of FCC and BCC phases could be probably evaluated using the VEC criteria. The tested mechanical properties demonstrated that CoNiCr1.8 alloy exhibited the best comprehensive properties at room and liquid nitrogen temperatures (RT and LNT), whereas the yield strength and hardness of CoNiCr2 alloy were higher than those of other alloys, which may be mainly attributed to the second-phase strengthening and the fine and lamellar microstructure. The yield strength of CoNiCr2 alloy at RT and LNT was 3.8 and 1.9 times (514 MPa and 825 MPa) that of CoNiCr alloy. In addition, the precipitation of dense and ordered FCC (L12) phase could primarily contribute to the enhance of yield strength of CoNiCr1.4 alloy. |
| Keyword | Medium-entropy alloys Eutectic Microstructure Mechanical property Strengthening mechanism |
| DOI | 10.1016/j.msea.2023.145957 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001131893200001 |
| WOS Keyword | SOLID-SOLUTION ; PHASE-FORMATION ; HIGH-STRENGTH ; DUCTILITY ; BEHAVIOR ; DESIGN ; NANOINDENTATION ; EVOLUTION ; STRATEGY ; SUBSTRUCTURE |
| WOS Research Area | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| Funding Project | National Natural Science Foundation of China[51931005] ; National Natural Science Foundation of China[52171048] ; Key Research and Development Program of Shaanxi Province[2020ZDLGY12-02] |
| Funding Organization | National Natural Science Foundation of China ; Key Research and Development Program of Shaanxi Province |
| Classification | 一类 |
| Ranking | 3 |
| Contributor | Wang, Weili ; Ren, Wei |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94007 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Northwestern Polytech Univ, Sch Phys Sci & Technol, Xian 710072, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Xian Univ Posts & Telecommun, Sch Sci, Xian 710121, Peoples R China; 4.Xian Technol Univ, Sch Mat Sci & Chem Engn, Xian 710021, Peoples R China |
| Recommended Citation GB/T 7714 | Wu, Haibin,Wang, Weili,Liu TW,et al. The microstructures and mechanical properties of CoNiCrx medium-entropy alloys[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,891:13.Rp_Au:Wang, Weili, Ren, Wei |
| APA | Wu, Haibin,Wang, Weili,刘天威,Yan, Pengxu,Ren, Wei,&Chen, Jian.(2024).The microstructures and mechanical properties of CoNiCrx medium-entropy alloys.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,891,13. |
| MLA | Wu, Haibin,et al."The microstructures and mechanical properties of CoNiCrx medium-entropy alloys".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 891(2024):13. |
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