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Mathematical modelling and computer simulation of mechanical properties of quenched and tempered steel (CROSBI ID 192351)

Prilog u časopisu | izvorni znanstveni rad

Smoljan, Božo ; Iljkić, Dario ; Pomenić, Loreta Mathematical modelling and computer simulation of mechanical properties of quenched and tempered steel // International journal of microstructure and materials properties, 8 (2013), 1/2; 97-112

Podaci o odgovornosti

Smoljan, Božo ; Iljkić, Dario ; Pomenić, Loreta

engleski

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

A mathematical model and method of computer simulation for the prediction of mechanical properties of quenched and tempered steel were developed. Numerical modelling of hardness distribution in as-quenched steel components was performed based on experimental results of Jominy test. Modified Jominy test was designed for hardenability prediction of high- hardenability steels. Hardness of quenched and tempered steel was expressed as a function of maximal hardness of actual steel and representatives of chemical diffusivity of steel according to the time and temperature of tempering. Yield strength and fracture toughness distributions were estimated using the Hahn– Rosenfield approach. Fatigue resistance was estimated based on predicted microstructure and hardness. Distribution of other relevant mechanical properties was found out based on predicted as-quenched and tempered hardness of steel. Experimental investigation was performed on high-hardenability steel for tools and dies. The established procedure was applied in computer simulation of mechanical properties of a quenched and tempered steel workpiece.

high-hardenability steels ; modified Jominy test ; quenching ; tempering ; mathematical modelling ; computer simulation ; microstructure ; mechanical properties ; hardness ; yield strength ; fracture toughness ; fatigue resistance.

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Podaci o izdanju

8 (1/2)

2013.

97-112

objavljeno

1741-8410

1741-8429

Povezanost rada

Strojarstvo, Temeljne tehničke znanosti