Preparation of Diamond Particles Reinforced Zinc/Aluminium Based Corrosion Resistance Coating and Its Properties

To solve the performance problems,low hardness and poor wear resistance and antifriction,of the zinc/aluminium based corrosion resistance coating at the special high speed and large friction service conditions,a trial adding diamond particles into the coating was made to enhance the coating properties.Effects of diamond particles and their adding contents on the coating hardness,friction coefficient,wear resistance,corrosion current density and microstructures were studied.The results showed that it was feasible to enhance the traditional zinc/aluminium based corrosion resistance coating by adding 1‰-7‰ diamond particles.It not only markedly enhanced the coating hardness and tribological properties,but also had no degrading effects on the coating corrosion resistance.