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

doi:10.1016/j.jmst.2020.08.062

	Mechanical, corrosion and magnetic behavior of a CoFeMn1.2NiGa0.8 high entropy alloy
	Sun, Xiaoming 1; Du, Lingzhong 1,2; Lan, Hao 1,2; Cui, Jingyi 1; Wang, Liang 3,4; Li, Runguang 4; Liu, Zhiang 5; Liu, Junpeng 6; Zhang, Weigang 1
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	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
DOI	10.1016/j.jmst.2020.08.062
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.
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
出版者	JOURNAL MATER SCI TECHNOL
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
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/48236]
专题	中国科学院过程工程研究所
通讯作者	Du, Lingzhong; Lan, Hao
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 3.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China 4.Argonne Natl Lab, Xray Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA 5.Qufu Normal Univ, Expt Teaching & Equipment Management Ctr, Qufu 273165, Shandong, Peoples R China 6.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 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.