Evaluation of the Possibility of Retarding Steel Recrystallization During Hot Rolling with Precipitation of Manganese Sulfide Particles

Resumo

The article is devoted to finding new production methods making it possible to prepare rolled product of carbon or low-alloy steels with a fine-grained structure, and this means greater strength with limitation or exclusion of expensive alloying with niobium. The possibility is considered of retarding recrystallization during hot rolling as a result of reprecipitation of manganese sulfide particles previously dissolved on heating for rolling. Laboratory tests are performed with the aim of determining the optimum heating temperature for rolling in order to implement the mechanism described.