期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 918, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2022.165673
关键词
Eutectic high entropy alloy; in-situ neutron diffraction; Deformation mechanisms; Stress partitioning
资金
- National Research Foundation (NRF) - Korean government [2021R1A4A1031494, 2020K1A3A7A09078090, 2017M2A2A6A05017635]
- KAERI Institutional Program [1711139323]
- JSPS Kakenhi [JP18H05479]
- National Research Foundation of Korea [2021R1A4A1031494, 2020K1A3A7A09078090] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In this study, the deformation behavior and strengthening contribution of the FCC phase and B2 phase in Al0.7CoCrFeNi eutectic high entropy alloys were investigated. It was found that the FCC phase exhibited slip-dominant deformation, while the stress contribution of the B2 phase significantly increased with an increase in plastic strain, becoming the predominant factor in tensile deformation.
In this study, the deformation behavior and strengthening contribution of the FCC phase and B2 phase in Al0.7CoCrFeNi eutectic high entropy alloys (HEAs) were investigated using in-situ neutron diffraction. An FCC matrix phase exhibited a slip-dominant deformation scheme, while twinning hardly contributed to deformation. Applied macroscopic stresses were rarely redistributed to the BCC A2 phase dispersed within the B2 phase, whereas the stress contribution of the B2 phase, which was initially lower than that of the FCC phase, increased significantly with an increase in plastic strain; hence, its contribution to tensile deformation became predominant. This study allows us to postulate a target value of each phase by microstructural tunning to achieve the desired properties of multicomponent phase HEAs.(c) 2022 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据