Analysis of the Effect of Silicon and Copper on the Mechanical Properties of Grey Cast Iron Using Taguchi Method

Cast iron can be used to produce varied products ranging from basic components in daily life to complex engine blocks of automobiles. This flexibility is achieved in cast iron by the process of alloying, where the properties of cast iron changes tremendously with addition of alloys. In this work, the significance and contribution of the effect of copper and silicon on mechanical properties of grey cast iron is studied using Taguchi method. An L-4 orthogonal array is selected for design of experiments and ANOVA is carried out to find out relative significance of copper and silicon on mechanical properties. The micro structural examination is also done to support the results obtained from ANOVA.