Strength-ductility synergy and superior strain-hardening ability of Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 multi principal element alloy through heterogeneous L1 2 structure modulation
文献类型：期刊论文
| 作者 | Yang, Yitong1,2; Pang, Jingyu1; Zhang, Zhuqun1,2; Wang, Yuting1; Ji, Yu1; Zhu, Zhengwang3; Zhang, Long1; Wang, Aimin1; Zhang, Haifeng3; Zhang, Hongwei1 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
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| 出版日期 | 2024-05-15 |
| 卷号 | 984页码:10 |
| 关键词 | Multi principal component alloys Heterostructure L12 particle |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2024.173916 |
| 通讯作者 | Pang, Jingyu(jypang17s@imr.ac.cn) ; Zhang, Hongwei(hongweizhang@imr.ac.cn) |
| 英文摘要 | In this paper, heterogeneous L1 2 particles were successfully introduced into Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 MPEA by two -stage aging treatment. Compared with the homogeneous particles, the heterogeneous L1 2 particles strengthened alloy exhibits enhanced strength -plasticity synergy. The tensile elongation is 23.2%, which is higher than all samples with the homogeneous particles, and the yield strength remains at 942 MPa, which is equivalent to the micro particles (972 MPa) with the highest yield strength in the homogeneous particles. Further analysis of the strengthening and deformation mechanisms revealed that precipitation hardening, and heterogeneous deformation -induced hardening were the main factors for the enhanced strength. The deformationinduced layered fracture networks, high -density Lomo-Cottrell locks, and heterogeneous L1 2 particles microstructure characteristics significantly improve the strain hardening ability; GNDs accumulate at the heterogeneous interface to alleviate the stress concentration at the GBs and improve the tensile plasticity of the MPEA with heterogeneous L1 2 particle structure. The heterogeneous L1 2 particle structure obtained through two -stage aging treatment without severe mechanical deformation has attractive engineering application potential. These properties of Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 MPEA with heterogeneous L1 2 particle structure have important enlightening and practical value. |
| 资助项目 | Liaoning Key Research and Development Program[2022JH2/101300080] ; Chinese Academy of Sciences[ZDBS-LY-JSC023] ; Natural Science Foundation of Liaoning Province[2023 -BS -012] ; Youth Innovation Promotion Association CAS[2021188] ; IMR Innovation Fund[2023-PY16] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001222112400001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Liaoning Key Research and Development Program ; Chinese Academy of Sciences ; Natural Science Foundation of Liaoning Province ; Youth Innovation Promotion Association CAS ; IMR Innovation Fund |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Pang, Jingyu; Zhang, Hongwei |
| 作者单位 | 1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Met, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yitong,Pang, Jingyu,Zhang, Zhuqun,et al. Strength-ductility synergy and superior strain-hardening ability of Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 multi principal element alloy through heterogeneous L1 2 structure modulation[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2024,984:10. |
| APA | Yang, Yitong.,Pang, Jingyu.,Zhang, Zhuqun.,Wang, Yuting.,Ji, Yu.,...&Zhang, Hongwei.(2024).Strength-ductility synergy and superior strain-hardening ability of Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 multi principal element alloy through heterogeneous L1 2 structure modulation.JOURNAL OF ALLOYS AND COMPOUNDS,984,10. |
| MLA | Yang, Yitong,et al."Strength-ductility synergy and superior strain-hardening ability of Ni 38 Co 25 Fe 13 Cr 10 Al 7 Ti 7 multi principal element alloy through heterogeneous L1 2 structure modulation".JOURNAL OF ALLOYS AND COMPOUNDS 984(2024):10. |
入库方式： OAI收割
来源：金属研究所
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