Special features of the formation of bainitic structures of granular morphology in the weld zone of welded joints in high-strength low-alloy steels

Morphology and conditions of intermediate granular structure formation in the heat-affected zone at submerged arc welding of the bainitic high-tensile steels are considered. It is shown that austenitizing temperature and type of plastic collapse have considerable influence upon mesoferrite and granular bainite formation under conditions of thermodeformative welding cycles.