A Review on Analysis and Optimization of Parameters For Spheroidal Graphite (SG) Iron Casting

The quality of SG Iron casting is fully depends on its parameters like melting of base iron, nodulisation treatment, inoculation process as well as pouring practices etc. The quality of casting checked with hardness, elongation & tensile strength also microstructure analysis. Microstructure analysis is a process to be carried out on ready castings. The main purpose of this paper is to present literature survey regarding measuring parameters of SG Iron casting process including image processing methodology for microstructure analysis of Spheroidal Graphite Iron (SGI) castings to determine the quality assessment parameters of SGI casting such as nodularity, nodule count, nodule size and percent of ferrite-pearlite. The strength and hardness of the SGI castings is dependent on these quality parameters.