Abstract

Among various methods to acquire high strength in plain carbon steel. the method of grain refinement by controlling thermo-mechanical processing parameters has gained a great attention in steel rolling industries, In the present study. three different rolling pass schedules are proposed to obtain fine grains which are based on combined results of recrystallization modelling. finite element analysis and experiment. Since meta-dynamic or dynamic recrystallization has been found to be very effective in producing fine grains, reduction ratio and interpass time in the proposed rolling pass schedules were determined in order to invoke such recrystallization as often as possible.

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