| Effect of Nb Content on Microstructure and Mechanical Properties of Mo0.25V0.25Ti1.5Zr0.5Nbx High-Entropy Alloys | |
| Zhang, Fengqi1,2; Xiang, Chao3; Han, En-Hou1,3; Zhang, Zijian1,2 | |
| Corresponding Author | Han, En-Hou(ehhan@imr.ac.cn) |
| 2022-04-22 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Pages | 12 |
| Abstract | High-entropy alloys (HEAs) have significant application prospects as promising candidate materials for nuclear industry due to their excellent mechanical properties, corrosion resistance and irradiation resistance. In this work, the Mo0.25V0.25Ti1.5Zr0.5Nbx (x = 0, 0.25, 0.5, 0.75 and 1.0) HEAs were designed and fabricated. The alloys were prepared by vacuum arc melting, and all the ingots were annealed at 1200 degrees C for 24 h. The microstructures, crystal structures, hardness and mechanical properties of Mo0.25V0.25Ti1.5Zr0.5Nbx HEAs were investigated. The as-cast alloys are composed of single BCC phase. Moreover, the single BCC phase is retained after annealing at 1200 degrees C for 24 h. The compressive and microhardness tests show that the strength and hardness of the alloys decrease gradually with the increase of Nb content, while the plasticity increases and the fracture mode of the alloy changes from brittle fracture to ductile fracture, which is mainly owing to the decrease of grain size. The addition of Nb significantly improves the plasticity of the Mo0.25V0.25Ti1.5Zr0.5Nbx alloys. In particular, Nb1.0 alloy can reach 28.32 % strain without fracture, which exhibits promising potential in industrial application. |
| Keyword | High-entropy alloy CALPHAD Microstructure Hardness Mechanical properties |
| Funding Organization | LingChuang Research Project of China National Nuclear Corporation |
| DOI | 10.1007/s40195-022-01399-2 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | LingChuang Research Project of China National Nuclear Corporation |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000785590200001 |
| Publisher | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/172889 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Han, En-Hou |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Fengqi,Xiang, Chao,Han, En-Hou,et al. Effect of Nb Content on Microstructure and Mechanical Properties of Mo0.25V0.25Ti1.5Zr0.5Nbx High-Entropy Alloys[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2022:12. |
| APA | Zhang, Fengqi,Xiang, Chao,Han, En-Hou,&Zhang, Zijian.(2022).Effect of Nb Content on Microstructure and Mechanical Properties of Mo0.25V0.25Ti1.5Zr0.5Nbx High-Entropy Alloys.ACTA METALLURGICA SINICA-ENGLISH LETTERS,12. |
| MLA | Zhang, Fengqi,et al."Effect of Nb Content on Microstructure and Mechanical Properties of Mo0.25V0.25Ti1.5Zr0.5Nbx High-Entropy Alloys".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2022):12. |
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