Effect of Bismuth in Trace Level on the Properties of Gray Cast Iron

In the present work an effort has been made to correlate the “Effect of Bismuth in trace level on the tensile strength, hardness and microstructure of gray cast iron”. Bismuth in trace level have a significant effect on the properties and microstructure of gray cast iron. Bismuth is deliberately added to study its effect on properties and microstructure. The addition of bismuth in trace level shows a decreasing trend in tensile strength and hardness values for all additions.