FEA and Experimental Investigation on The Thermal Properties of the Ceramic Coating on Aluminium Piston

ABSTRACT: In this study, the surface of a piston in a engine is coated with multi layer coating powder by the plasmaspray technique, and its surface behavior is subsequently analyzed. The purpose of this study is to analyze with mechanical and thermal effects of surface coating for a piston in frictional mechanism. In this related, with and without coated specimens were prepared, then the microstructure, hardness, corrosion test were carried out. From the obtained test and Ansys results , it is found that the coated specimen having improved properties in towards the diesel engine performance. The results show less deformation and fewer scratches due to wear on the multi layer coated piston as compared to uncoated one. Also the aim of the investigation is to compare the mechanical, thermal properties and wear resistance of the piston with multi layer coating deposited on substrate material as Aluminium by Plasma spray technique. The surfaces topography and the structure of the plasma spray coatings is observe on the optical microscopy. The evaluation of the adhesion of coatings to the substrate is made using the hardness test also compare the thermal barrier properties. In case of the multi layer coating deposited onto the Aluminium a very good adhesion has been revealed to the substrate material in comparison to the Alumina -Titania coating deposited onto the heat treated hot work Aluminium. Taking into account the results of measurements, one can state that the lowest wear and thermal resistance at certain conditions at both room and elevated temperatures displays the multi layer coating deposited onto plasma spray coating