Structural Anisotropy Parameters’ Effect on the Low-Temperature Impact Strength of Alloy Steels in Rolled Products

The present work is devoted to the study of influence parameters structural anisotropy rolled products on low-temperature impact strength alloyed steels. A quantitative metallographic analysis microstructure steel samples obtained after testing for toughness was carried out. It established that main reason decrease in a highly developed segregation band enriched with carbon films formed at stage steelmaking conversion violation technology continuous casting steel. microstructural stock used work, and studies fracture surface were out scanning electron microscope using X-ray microanalysis methods. showed metallurgical quality sheets one heat, as well individual within sheet, varied over wide range, from satisfactory unacceptably low. decreasing films, case technology. multivariate statistical only size has an effect 10 mm thick coil samples.