Influence of inoculants on the features of weld structure formation in low-alloyed steels (Review)

Abstract

The paper presents a review on the influence of dispersed refractory compounds inoculation into the weld pool on weld metal microstructure formation in low-alloyed high-strength steels. Primary structure formation process features are considered in the refractory nonmetallic inclusions presence in the liquid metal, as well as on the interface of δ-dendrites and γ-phase. of The inoculant influence possibilities on the bainite transformations temperature range, microstructural components formation with higher brittle fracture resistance, and weld metal toughness values improvement are shown.