Properties of electrodeposited Ni-SiC composite coatings on MB8 wrought magnesium alloys

摘要

Ni-SiC nanocomposite coatings with reinforcing SiC nano-particulates were prepared by electrodeposition on MB8 wrought magnesium alloys. The microstructure, chemical compositions, hardness, corrosion resistance, and wear resistance of resulting composites were investigated respectively. This article details the state of the art in coating technologies, applied to magnesium based substrates for improved corrosion and wear resistance. The experimental results show that, uniform and compact coatings with good corrosion resistance can be obtained on MB8 wrought magnesium alloys. The wear resistance of the coatings were observed to be superior to hard chromium coatings.