ABSTRACT

Chemical modification of sulphide and oxide inclusions is a normal practice to obtain more desirable mechanical properties in steels. For example, cryogenic resilience is a relevant property that may be affected relevantly by chemical and morphological modification of inclusions during liquid steel elaboration. This change in properties is done, in steelmaking, mostly during ladle treatment. In steel foundry practice, similar procedures are possible. In this work, it has been studied the employment of industrial residues, like calcium rich ones, for the purpose of treatment of molten steels. Results are evaluated and allowed to conclude for the usefulness of some of the wastes, enhancing better mechanical properties, especially at low temperatures.