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Mathematical modelling and computer simulation of mechanical properties of quenched and tempered steel

The mathematical model and method of computer simulation for the prediction of mechanical properties of quenched and tempered steel was developed. Numerical modelling of hardness distribution in as-quenched steel components was performed based on experimentally results of Jominy test. Hardness of quenched and tempered steel was expressed as function of maximal hardness of actual steel and representatives of chemical diffusivity of steel according to the time and temperature of tempering. Distribution of other relevant mechanical properties was found out based on predicted as-quenched and tempered hardness of steel. Experimental investigation was performed on die steel. The established procedure was applied in computer simulation of mechanical properties of quenched and tempered steel workpiece.

quenching; computer simulation; high-hardenability steels

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