Hot compression constitutive equation and hot processing map of 06Cr23Ni13 stainless steel
Hot deformation softening behavior of 06Cr23Ni13 stainless steel was studied using a Gleeble-3500 thermal simulation testing machine at deformation temperatures of 850-1250 ℃ and strain rates of 0.01-10 s-1.The results show that when the strain rate is the same,the flow stress of the 06Cr23Ni13 stainless steel decreases with the increase of deformation temperature.When the deformation temperature is the same,the flow stress increases with the increase of strain rate.The constitutive equation of the 06Cr23Ni13 stainless steel is constructed and validated based on the Arrhenius model.Based on the dynamic material model theory,the hot processing map of the 06Cr23Ni13 stainless steel under large deformation(ε=0.6)is drawn.According to the hot processing map of the 06Cr23Ni13 stainless steel,the value of the energy dissipation rate η can be as high as 0.37-0.44 in the high temperature and low strain area with deformation temperature of 1100-1250 ℃ and strain rate of 0.01-0.05 s-1,which belongs to the easy processing area and is the best hot deformation area.
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万方数据
维普
