Abstract
The high temperature deformation behavior of a M2 grade high-speed tool steel under hot working conditions in the temperature range of 900 to 1200°C and strain rate range of 0.01 to 50 s -1 has been studied by performing a series of hot compression tests. The dynamic materials model has been employed for developing the processing maps, which show variation of the efficiency of power dissipation with temperature and strain rate. Also the Kumar's model has been used for developing the instability maps, which show variation of the instability for plastic deformation with temperature and strain rate.
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