Investigation on Effect of Cryogenic Parameters on Wear Behavior of Aluminium- AL2O3 MMCSS Using Taguchi Method

Abstract- The objective of this research work was to investigate the effect of cryogenic parameters such as cryogenic temperature (-100,-150 and-196C), duration of cryogenic treatment (0, 25 and 50 h) and wt. % of reinforcement (0, 10 and 20 wt. %) on wear behavior of Al/Al2O3 metal matrix composites (MMCs). The Al2O3 particulate reinforced MMCs were fabricated by liquid metallurgy technique. Specimens so prepared were treated for different cryogenic temperatures for different treatment duration using liquid nitrogen. Both un treated and cryogenic treated specimens were tested on pin-on-disc for constant load 20 N, sliding speed of 1.5 m/s and sliding distance of 3 km. Taguchi method is applied for predicting the optimum cryogenic treatment parameter that gives the lowest wear rate to the castings. The experimental and analytical results showed that the Taguchi method was successful in predicting cryogenic parameters that give the lowest wear rate and the wt. %