Microstructure of electrodeposited RE-Ni-W-P-SiC composite coating

来源期刊：中国有色金属学报(英文版)2000年第1期

论文作者：郭忠诚 朱诚意 翟大成 杨显万

文章页码：50 - 52

Key words：electrodeposition; RE-Ni-W-P-SiC composite coating; microstructure

Abstract: The components and microstructure of the RE-Ni-W-P-SiC composite coating were analyzed by means of EPXDS, SEM and XRD. The results showed that the composite coating containing 5%~14%RE, 4%~7%SiC, 12%~15%P and 5%~6%W was obtained by use of appropriate bath composition and plating conditions. The as-deposited composite coating is amorphous and it becomes mixture when the temperature is raised from 200℃to 400℃. However, the composite coating is crystal when the temperature is over 400℃. Scanning electron microscopy indicates that the heat treatment temperature has no effect on the surface morphologies of the RE-Ni-W-P-SiC composite coating. This is to say that the composite coating has a better heat stability of microstructure and high temperature oxidation.