ON THE RHEOLOGICAL MODEL OF STEELS AT ELEVATED TEMPERATURES

Mechanical properties of steels ZG15CrMoV and 35 in the temperature range of 500 to 1400℃ have been experimently researched by means of Gleeble-1500.The experi- mental results is used as input-output responses,a rhelological model with five elements of the mechanical behaviour of steels ZG15CrMoV and 35 at elevated temperatures, i.eM]=H_1]-H_2/N_2]-S/N_3],is determined by a system identification method,and the parameters of the model in the temperature range are also identified.