OPTIMIZATION OF MECHANICAL BEHAVIOR OF NI-P NANOCOMPOSITE COATINGS USING TAGUCHI APPROACH

This paper studies the electroless (Ni-P) deposition which used in different engineering applications due to their ability to modify and enhance the surface properties of the steel substrate. The electroless plating process was used to prepare (Ni-P/ Nano TiO2), (Ni-P/ Nano Al2O3) and (Ni -P/ Nano SiO2) alloys in this research. Deposition process parameters based on (L28) Taguchi orthogonal configuration with three process parameters, viz., stirring speed, temperature, time, are designed for optimum microhardness. Under the Taguchi series, the microhardness activity of electroless (Ni-P-TiO2) nanocomposite deposition was measured. The findings revealed that the integration of TiO2 into the coating allows micro-hardness to increase. Finally, optimum conditions were achieved as, A2B1C2 (i.e. middle-level o of bath temperature (90 C), lower level of plating time (80 min.) and middle level of nanomaterial (Al2O3)), the ANOVA analysis reveals that nanomaterial has a great (60%) influence over the microhardness and surface roughness as compared to bath temperature (28%) and plating time (12%).