engleski

Numerical modelling of case hardening of steel

The mathematical model and computer simulation for the prediction of mechanical properties of case hardened steel was developed. The computer simulation of case hardening of steel is consisted of simulation of diffusion of carbon, simulation of heat transfer, and simulation of microstructure composition and mechanical properties. The hardness of case hardened steel has been predicted by conversion of calculated time of cooling from 800 °C to 500 °C to the hardness. After that, distribution of relevant mechanical properties of case hardened steel was found out. Because of wide range of applicability and ease of use of finite volume method (FVM), integrated computer program for simulation of diffusion of carbon, transient temperature field, microstructure transformation and mechanical properties during case hardening of steel was created by FVM numerical method. The established numerical model was applied in computer simulation of case hardened steel.

Mathematical modelling ; Mechanical properties ; Case hardening

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