This paper investigates the corrosion rate of ZrC nano particle reinforced with Al-12Si metal matrix composites produced by powder metallurgy. The acidic solutions used for corrosion is 1 N HC1,1 N H_2SO_4 and 1 N HNO_3. The reinforcement percentage was 0 wt. , 5 wt. and 10 wt. . The result indicates that with the enhancement of nano ZrC particles into the matrix decrease the corrosion rate respectively. The corrosion behavior of composites was studied by SEM and corrosion rate. As input parameters such as reinforcement, acid and time were designed by RSM design and the response parameter was corrosion rate was obtained experimentally by corrosion rate. RSM design was investigated for the evaluation of interactions between response parameter and input parameters. The corrosion rate specifies varying results depending on the input values of the response parameters. The outcomes revealed that all the parameters had significant effects on the corrosion rate at 95 confidence level.
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