Microstructure and Performance of Cold Spray -Assisted In -situ Synthesized FeCoSrAlCu High Entropy Alloy Coating

	Microstructure and Performance of Cold Spray -Assisted In -situ Synthesized FeCoSrAlCu High Entropy Alloy Coating
	Feng Li 1,2; Wang Jun 1; Wang Guiping 1; Ma Kai 1; An Guosheng 1,2; Li Wensheng 1,2
刊名	RARE METAL MATERIALS AND ENGINEERING
	2021-11-01
卷号	50 期号:11 页码:3987-3994
关键词	cold spraying in -situ synthesis high entropy alloy coating wear resistance corrosion resistance
ISSN号	1002-185X
英文摘要	The FeCoxCrAlCu(x=0,0.5,1,1.5,2) high entropy alloy coating was prepared on the surface of 454 steel matrix by cold spray assisted in situ synthesis method. The effects of Co content on phase structure, microstructure, hardness, wear resistance and corrosion resistance of alloy coating were analyzed by XRD, SEM, EDS, TEM, microhardness meter, abrasive wear testing machine, electrochemical workstation and so on. The results show that the alloy coating is composed of simple fcc+bcc two phase mixed structure, and the change of Co content has little influence on the phase structure of the coating. With the increase of Co content, the number of dendrites in the alloy coating increases and the dendrites get coarsening obviously. The microstructure is enriched with Fe, Cr, Co in the dendrites, and Cu is enriched between the dendrites, and Al is evenly distributed in the entire coating. With the increase of Co content, the hardness first increases and then decreases. When x=1, the hardness of the alloy coating reaches the maximum value, which is 5556 MPa. The minimum friction coefficient in the alloy coating is 0.361. In 3.5wt% NaCl corrosive medium, the alloy coating has a positive self-corrosion potential compared with the 454 steel substrate, indicating that the coating has better corrosion resistance than the substrate.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	中文
出版者	NORTHWEST INST NONFERROUS METAL RESEARCH
WOS记录号	WOS:000727522800024
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/154998]
专题	材料科学与工程学院
作者单位	1.Lanzhou Univ Technol, Coll Mat Sci & Technol, Lanzhou 730050, Peoples R China; 2.State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
推荐引用方式 GB/T 7714	Feng Li,Wang Jun,Wang Guiping,et al. Microstructure and Performance of Cold Spray -Assisted In -situ Synthesized FeCoSrAlCu High Entropy Alloy Coating[J]. RARE METAL MATERIALS AND ENGINEERING,2021,50(11):3987-3994.
APA	Feng Li,Wang Jun,Wang Guiping,Ma Kai,An Guosheng,&Li Wensheng.(2021).Microstructure and Performance of Cold Spray -Assisted In -situ Synthesized FeCoSrAlCu High Entropy Alloy Coating.RARE METAL MATERIALS AND ENGINEERING,50(11),3987-3994.
MLA	Feng Li,et al."Microstructure and Performance of Cold Spray -Assisted In -situ Synthesized FeCoSrAlCu High Entropy Alloy Coating".RARE METAL MATERIALS AND ENGINEERING 50.11(2021):3987-3994.