Where is the location of heat affected zone in welding?

The heat-affected zone (HAZ) in welding is the area adjacent to the weld where the base material has been subjected to high temperatures but has not melted. It typically extends from the edge of the weld pool into the base metal, influenced by the heat input from the welding process. The properties of the HAZ can change due to thermal cycles, affecting material characteristics like hardness and strength. Proper control of welding parameters is essential to manage the HAZ effectively.