WEAR RESISTANCE INVESTIGATION OF HIGH VELOCITY OXY FUEL SPRAY COATING ON AISI 1015 MILD STEEL SUBSTRATE

Mechanical Engineering

High velocity oxy fuel spray coating process is an effective surface engineering technique for its good thermal protectiveness, high hardness and wears resistance. The process covers a wide range of industrial applications including manufacturing, textile, and paper industries, and so on. To improve the micro hardness and wear resistance of mechanical components, high velocity oxy fuel coating has been applied to deposit of WC-17Co coating on low carbon AISI1015 substrate. The phase constituents and microstructure of the composite coating will investigate using optical microscope (metallurgical). Hardness at the coating cross section and wear rate measurement. For Experimental design full factorial method was used (L=mⁿ) to find out number of readings. To find out percentage contribution of each input parameters for obtaining optimal conditions, Analysis of variance (ANOVA) method was used. The grey relational grade obtained with use of grey relational analysis technique. By analyzing the Grey relational grade the optimum parameters were evaluated.

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