Excellent elastocaloric and mechanical performance in Mn-doped Co-V-Ga as-cast polycrystalline alloy with simple preparation
文献类型：期刊论文
| 作者 | Yang, Jie1; Tan, Changlong1; Liu, Rui2; Wang, Xiaochuan1; Liu, Yang1; Zhao, Wenbin1; Li, Jian1; Tian, Xiaohua3; Zhao, Lei1; Zhang, Kun4 |
| 刊名 | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
 |
| 出版日期 | 2024 |
| 卷号 | 28页码:655-667 |
| 关键词 | Elastocaloric effects Shape memory alloys Stress -induced martensitic phase transformation Mechanical properties |
| ISSN号 | 2238-7854 |
| DOI | 10.1016/j.jmrt.2023.12.034 |
| 通讯作者 | Tan, Changlong(changlongtan@hrbust.edu.cn) ; Zhang, Kun(kzhang@imr.ac.cn) |
| 英文摘要 | With the rapid development of solid-state refrigeration technology, elastocaloric materials face higher re-quirements, such as a higher elastocaloric effect (eCE), better mechanical properties, and simpler and faster large-scale preparation. In this work, we propose a composition design strategy for Mn-doped Co-V-Ga shape memory alloys, which can enhance both the eCE and the mechanical properties. We combine first-principles calculations and experiments to demonstrate this strategy. Our results reveal that the lattice distortion caused by the difference in atomic radii produces a solid-solution-strengthening effect within the alloy, impeding dislocation motion and significantly improving the mechanical properties. Through composition optimization, the low-cost Co51.7V31.3Ga14.75Mn2.25 as-cast polycrystalline alloy exhibits a large adiabatic temperature change (ATad) of-11.2 K at room temperature, while its maximum compressive strength and strain can reach up to 1859 MPa and 26% at room temperature, respectively. Importantly, the alloy exhibits excellent cycle stability, and its ATad does not decay after 100 loading and unloading cycles, indicating that it has the potential for practical application. Further comparison with the annealed sample shows that the secondary defects deteriorate the ATad of the alloy. Our research provides an effective strategy for the simple, rapid and large-scale production of as-cast eCE alloys. |
| 资助项目 | National Natural Science Foundation of China[52271172] ; National Natural Science Foundation of China[52001101] ; National Natural Science Foundation of China[51971085] ; Hei- longjiang Provincial Natural Science Foundation of China[YQ2022112] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001133900200001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China ; Hei- longjiang Provincial Natural Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Tan, Changlong; Zhang, Kun |
| 作者单位 | 1.Harbin Univ Sci & Technol, Sch Mat Sci & Chem Engn, Harbin 150080, Peoples R China 2.Harbin Univ Sci & Technol, Sch Sci, Harbin 150080, Peoples R China 3.Harbin Univ Sci & Technol, Sch Elect & Elect Engn, Harbin 150080, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Jie,Tan, Changlong,Liu, Rui,et al. Excellent elastocaloric and mechanical performance in Mn-doped Co-V-Ga as-cast polycrystalline alloy with simple preparation[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,28:655-667. |
| APA | Yang, Jie.,Tan, Changlong.,Liu, Rui.,Wang, Xiaochuan.,Liu, Yang.,...&Zhang, Kun.(2024).Excellent elastocaloric and mechanical performance in Mn-doped Co-V-Ga as-cast polycrystalline alloy with simple preparation.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,28,655-667. |
| MLA | Yang, Jie,et al."Excellent elastocaloric and mechanical performance in Mn-doped Co-V-Ga as-cast polycrystalline alloy with simple preparation".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 28(2024):655-667. |
入库方式： OAI收割
来源：金属研究所
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