Abstract

1. Recrystallization of deformed ferrite in steel R6M5 commences at about 780°C and it continues to the maximum recrystallization temperatures for existence of α-solid solution. The temperature ranges for recrystallization and superplasticity coincide. 2. Dynamic recrystallization of ferrite in steel R6M5 with rolling for one pass is incomplete with all degrees of deformation. 3. Static recrystallization occurs entirely with e≥50%. The recrystallized ferrite grain size is finer than the original by a factor of four to five. 4. Polygonization of deformed ferrite may markedly stabilize the structure and there-by make recrystallization difficult.

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