Влияние способа сварки на структуру и фазовый состав зоны термического влияния сварного шва стали 09Г2С

Abstract

The paper presents the transmission electron microscopy investigations of the structure and phase composition of welded joint formed by four types of welding process, namely: electrode welding with and without the introduction of artificial flaws and electropercussive welding also with and without the introduction of artificial flaws. Artificial flaws are pieces of aluminum. TEM investigations allow studying the structure and phase composition within the heat-affected zone at 1 mm distance from base material. Welded material is the type 0,09C-2Mn-1Si-Fe steel. It is shown that the type of welding affects the material morphology, phase composition, defect structure and its parameters.