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Composite ceramic-Ni60 coating fabricated via supersonic plasma spraying
Institution:1. Mechanical and Electrical Engineering Institute, Zhengzhou University of Light Industry, Zhengzhou 430002, China;2. National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering, Beijing 100072, China;3. School of Computer and Communication Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China;4. Hennan Key Laboratory of Intelligent Manufacturing of Mechanical Equipment, Zhengzhou 430002, China
Abstract:Using the supersonic plasma spraying (SPS) technique, a composite ceramic-Ni60 coating was prepared on a 45# steel substrate. The particle morphology, coating morphology, and phase structure of the coating were analyzed via scanning electron microscopy and X-ray diffraction. Moreover, the tribological properties of the coating were determined via friction and wear experiments. The results revealed that: the crystal structure of the SPS-produced coating is composed of six phase-structure types, and the coating structure was dense with low porosity. During the wear test (rotation speed of ball: 300 rpm, load: 50 N), the friction coefficient decreased by 32.75%, and the coating underwent abrasive wear (wear mechanism).
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