"Influência dos parâmetros redução a frio e ciclo de recozimento naspropriedades mecânicas e microestrutura de um aço ARBL laminado a frio e processado via recozimento contínuo"

Abstract

The effects of cold reduction and the soaking temperature of continuous annealing cycle for a HSLA steel were evaluated in three different levels. Samples of this steel, as industrially cold rolled, were submitted to additional cold reduction in pilot mill and subsequently subjected to annealing process in a GLEEBLE machine to simulating cycles already standardized for industrial process. The results confirmed that both cold reduction and soaking temperature in continuous annealing process caused significant effect on the mechanical properties of steel. The ferritic grain size was more affected by cold reduction than by annealing, but the cycle of annealing affected more intensively the mechanical properties of steel. The results showed possibilities for cost reduction through changes in the industrial processing currently practiced.