摘要
The n-SiO2/Ni composite electro-brush plating coating was prepared on the 1045 steel substrate. SEM and TEM were utilized to analyze the surface and cross-section morphologies or the microstructures of the composite coating before and after heat treatment, as well as a micro-hardness tester was used to measure the micro-hardness before and after heat treatment. The results show that the entrance of nano SiO2 particles into composite coating makes the micro-hardness higher. After heat treatment, due to the obstruction to growth of Ni crystals from nano particles, the composite coating still possesses a higher micro-hardness than that of common Ni-base coating.
出处
《中国有色金属学会会刊:英文版》
CSCD
2004年第z1期111-114,共4页
Transactions of Nonferrous Metals Society of China
基金
Project(50235030) supported by the National Natural Science Foundation of China
Project(G1999065009) supported by the National Basic Research Program of China
Project(2003AA331130) supported by the Hi-tech Research and Development Program of China