Optimization of process parameters for in situ casting of Al/TiB2 composites through response surface methodology

The mathematical models were developed to predict the ultimate tensile strength (UTS) and hardness of Al/TiB₂ MMCs fabricated by in situ reaction process. The process parameters include temperature, reaction time and mass fraction of TiB₂. The in-situ casting was carried out based on three-factor five-level central composite rotatable design using response surface methodology (RSM). The validation of the model was carried out using ANOVA. The mathematical models developed for the mechanical properties were predicted at 95% confidence limit.