The microstructure,corrosion resistance in acidmedia as well as corrosion-wear behaviors under different impact velocities or in acid media with various densities were investigated for the all laser remelted alloy coatings.

Crack resistance and wear resistance of laser clad layer on the surface of cast iron;

By using SEM,TEM and X-ray analysis techniques,this paper gives systematic and profound studies on the successive alternations in microstructure morphology from the substrate to the laser remelted coating,the main phase struc tures,orientation relationships and microdefects.