Ni-P-TiO2 Nanocomposite Coatings and Effect of Heat treatment on Structure, Morphology and Wear Resistance

Electroless Ni composite coatings, containing dry lubricant particles, due to the formation of surfaces with low friction coefficient and high wear resistance for unsing in specific applications arewidely considered by researchers. one of the most important nanocomposite coatings is Ni-P-nano particle TiO2 coatings. In this research this type of coatings was applied on steel and were heat treated at 400 ̊C. Surface morphology of coatings were examined by Scanning Electron Microscopy and X-Ray Diffraction and Wear resistance of nanocompopsite coatings were studied by wearing test. It was found that heat treated composite coatings have a higher wear resistance and lower friction cofficient in comparison with unheated coatings.