Characteristics of deformation-induced transformation (DIT) in the refractory low alloy
steel 2.25Cr1Mo were experimentally studied. Effect of different controlled-rolling and
controlled-cooling process on the steel microstructure and mechanical properties were investigated
and the mechanism was discussed. Results show that the grain size and the ferrite volume fraction
were obviously affected by the rolling and cooling processes. Proper DIT technique may
significantly accelerate the transformation of austenite to ferrite in the steel and improve the steel
strength.
