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Effect of the annealing conditions on the microstructure and mechanical properties of A 0.04%C Al killed steel

Abstract:

The present investigation evaluates the effect of static annealing variables on the grain structure and mechanical properties of a 0.04 %C-A1 killed steel. The experimental variables selected were the heating rate and the initial heating temperature. The results showed that an increase in the initial heating temperature and heating rates inferior to 500°C and 100°C/h, respectively, do not have a major influence in the grain structure of the material. These annealing conditions lead to a full "pancake" type of microstructure of the recrystallized ferrite grain, and as consequence, the mechanical properties of the material are in the intervals required for deep drawing applications.