Effect of heat input on variant selection, microstructure and mechanical properties at coarse grain heat affected Zone (CGHAZ) of welded carbon steel

Carbon steel is the most popular material used in large scale industries due to abundance source, low cost and variety of mechanical properties. In order to meet industries demand, the steel is welded with manipulated heat input to get their desired microstructure. The difference in heat input results changes in microstructure, mechanical and physical steel properties especially at coarse grain heat affected zone (CGHAZ).