Advancement of the Properties of Structural Steels by Creating an Optimum Form of Existence of Impurities and Nonmetallic Inclusions

摘要

Special features of a recent metallurgical process for structural steels are considered. The types of nonmetallic inclusions, precipitates of excess phases and impurities are described, and the effect of their content, size, morphology and volume distribution on the production, operational and quality characteristics of the steel is determined. Specific examples are used to show the perspectives of the formulated principle for advancing the combination of properties of structural steels of various types at substantial decrease in the expenses.