Microstructure, corrosive-wear and immersion corrosion performances of laser cladded FeCoNiCr-Mo (Al, Ti) high-entropy alloy coatings

被引：8
|
作者：
Zhicheng, Liu [1 ]
Dejun, Kong [1 ]
机构：
[1] Changzhou Univ, Sch Mech Engn, Changzhou 213164, Peoples R China
来源：
CORROSION SCIENCE | 2024年 / 227卷
关键词：
FeCoNiCr-based coating; Laser cladding; Corrosive-wear; Wear mechanism; Immersion corrosion; Corrosion mechanism; BEHAVIOR; STEEL;
D O I：
10.1016/j.corsci.2023.111766
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of Mo, Al and Ti additions on the corrosive-wear and immersion corrosion performances of FeCo-NiCr-based coatings were investigated, and the corrosive-wear and corrosion mechanisms were discussed. The results show that the corrosive-wear resistance of FeCoNiCr-Al HEA coating is the highest among the three kinds of coatings, and the corrosive-wear mechanism is combined of abrasive wear, adhesive wear, oxidative wear and pitting corrosion. The immersion corrosion rates of FeCoNiCr-Mo, -Al and -Ti HEA coatings are 6.94 x 10-5, 2.78 x 10-4, and 5.56 x 10-4 m center dot h-1, respectively, and the corrosion mechanism is pitting corrosion by the attack of Cl-.
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页数：12
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