AN Optimization of Erosive Wear on AA 2618 Reinforced with Si_3N_4, AlN and ZrB_2 In Situ Composites

摘要

In this investigation, AA 2618 is taken as the matrix material and Si_3N_4 (Silicon Nitride), AlN (Aluminium Nitride) and ZrB_2 (Zirconium Boride) are taken as the reinforcement material. The reinforcements are mixed with the matrix in various X weight percentages (wt %) (X=0, 2, 4, 6, 8) by stir casting method. According to the ASTM standard AA 2618 composites were prepared with various wt % to find the mass loss in erosion test. The samples were imposed with various input conditions to obtain minimum mass loss for AA 2618 composites. Taguchi method was used to find the maximum influenced process parameter for mass loss and ANOVA (Analysis of Variance) method was adopted for finding the percentage of contribution of each process parameters.