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Abstract :

The presentation in this paper briefs the experimental results obtained for evaluating the hardness and comparing with its microstructural pattern. Mild steel chills (MSC) are used to check the chilling effect. The results show that chill position influences the hardness of cast iron. Increase in hardness is observed by placing MSC at different locations. Specimens were prepared for microstructural examination using scanning electron microscope (SEM). Microstructure analysis was also carried out to evaluate the graphite morphology and carbide content using material plus and imageJ analyzer. Longer graphite flakes fare found in normally manufactured grey cast iron (GCI) without using MSC. Low size graphite's and formation of carbides in the form of needles are seen near the chilled end surface. Effect of MSC position on hardness is studied and analyzed using image analyzers. © 2018 Elsevier Ltd.