通过热处理激光熔覆 NiCoCrAlY 涂层的微观结构、腐蚀磨损和电化学性质

IF 3.4 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Yiming Deng, Chenglong Yang, Dejun Kong
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Microstructure, Corrosive-Wear, and Electrochemical Properties of Laser Cladded NiCoCrAlY Coatings by Heat Treatment

Heat treatment plays a positive role in alloy coatings during the corrosive-wear and electrochemical process, in which the heating temperature is a key factor in the improvement of microstructure. In this work, the laser-cladded NiCoCrAlY coating is processed by heat treatment, and the effects of heating temperature on the microstructure, corrosive-wear, and electrochemical properties of obtained coatings are investigated. The results show that the average coefficients of friction and wear rates of NiCoCrAlY coatings are decreased with the increase of heating temperature, and the wear mechanism is mainly abrasive wear, adhesive wear, and pitting corrosion. Moreover, the corrosion resistance of NiCoCrAlY coatings is decreased with the increase of heating temperature, which is attributed to the precipitation of phases along the grain boundaries at high temperatures.

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来源期刊
Advanced Engineering Materials
Advanced Engineering Materials 工程技术-材料科学:综合
CiteScore
5.70
自引率
5.60%
发文量
544
审稿时长
1.7 months
期刊介绍: Advanced Engineering Materials is the membership journal of three leading European Materials Societies - German Materials Society/DGM, - French Materials Society/SF2M, - Swiss Materials Federation/SVMT.
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