The Adhesive Wear Resistance of Ni-SiC Electrodeposited Composite Coatings

The influences of the median size of SiC particles, current density and SiC concentration in slurry on the adhesive wear resistance of Ni-SiC composite coatings electrodeposited from a Watts type bath were studied. Complex behavior of the Ni-SiC electrodeposited composite coatings was observed in wear resistance tests, and no relationship was observed between wear resistance and the preparation parameters. It was found that SiC particles co-deposited in the Ni matrix seemed to have a definite particle size (1-2.5μm) regardless of the median size of the SiC particles used.