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Mechanical, corrosion and magnetic behavior of a CoFeMn1.2NiGa0.8 high entropy alloy

文献类型：期刊论文

作者Sun Xiaoming6; Du Lingzhong5,6; Lan Hao5,6; Cui Jingyi6; Wang Liang3,4; Li Runguang3; Liu Zhiang2; Liu JP(刘俊鹏)1; Zhang Weigang6
刊名JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
出版日期2021-03-20
卷号73页码:139-144
关键词High entropy alloys High-energy X-ray diffraction Compressive property Corrosion resistance Magnetic behavior
ISSN号1005-0302
DOI10.1016/j.jmst.2020.08.062
通讯作者Du, Lingzhong(lzdu@ipe.ac.cn) ; Lan, Hao(hlan@ipe.ac.cn)
英文摘要In this study, a magnetic high entropy alloy (HEA) of CoFeMn1.2NiGa0.8 was designed and prepared by arc melting in order to investigate its mechanical, corrosion and magnetic behavior. The results show that the alloy mainly possesses body-centered cubic (BCC) phase and face-centered cubic (FCC) phase. A high compressive strength of 1450 MPa, a strain of 18.5 % and a relatively low yield strength of 303 MPa in as-cast condition at room temperature can be achieved in the present alloy. In-situ high-energy X-ray diffraction technique was employed to reveal the deformation mechanism of CoFeMn1.2NiGa0.8 under uniaxial compression and the results show that the competition between BCC phase and FCC phase plays a significant role during the compressive process. The corrosion behavior of CoFeMn1.2NiGa0.8 was investigated in 3.5 wt% NaCl solution and it turned out that the alloy possessed good corrosion resistance. At last, the magnetic behavior of the CoFeMn1.2NiGa0.8 alloy was studied and it can present a high saturation magnetization of 94.5 emu/g and a coercivity of 26.4 Oe at 4 K. This work indicates that the present CoFeMn1.2NiGa0.8 HEA has promising applications as future magnetic functional materials. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
分类号一类
资助项目National Key Research and Development Program of China[2018YFC1902401] ; National Natural Science Foundation of China[51671180] ; Chinese Academy of Sciences[ZDRWCN-2019-01] ; Projects of the Innovation Academy for Green Manufacture, Chinese Academy of Sciences[IAGM 2020DB04]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000636043900016
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Projects of the Innovation Academy for Green Manufacture, Chinese Academy of Sciences
其他责任者Du, Lingzhong ; Lan, Hao
源URL[http://dspace.imech.ac.cn/handle/311007/86416]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
2.Qufu Normal Univ, Expt Teaching & Equipment Management Ctr, Qufu 273165, Shandong, Peoples R China;
3.Argonne Natl Lab, Xray Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA;
4.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China;
5.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China;
6.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China;
推荐引用方式
GB/T 7714		 Sun Xiaoming,Du Lingzhong,Lan Hao,et al. Mechanical, corrosion and magnetic behavior of a CoFeMn1.2NiGa0.8 high entropy alloy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,73:139-144.
APA Sun Xiaoming.,Du Lingzhong.,Lan Hao.,Cui Jingyi.,Wang Liang.,...&Zhang Weigang.(2021).Mechanical, corrosion and magnetic behavior of a CoFeMn1.2NiGa0.8 high entropy alloy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,73,139-144.
MLA Sun Xiaoming,et al."Mechanical, corrosion and magnetic behavior of a CoFeMn1.2NiGa0.8 high entropy alloy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 73(2021):139-144.

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来源：力学研究所

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