Toplotna obdelava in mehanske lastnosti težkihizkovkov iz jekla A694-F60

摘要

The production of heavy steel forgings of micro-alloyed steels gives the possibility to obtain advantages associated with thebenefit of the application of micro-alloying elements and thermomechanical treatments for improving the mechanical propertiesof forgings to level by sheets, strips and tubes. The paper presents the influence of quenching temperature on the mechanicalproperties and microstructure of F60 steel according to ASTM A694. The verification of the influence of quenching temperaturecontributes to an optimization of the method of micro-alloyed steel heat treatment. The steel’s microstructure and mechanicalproperties after quenching constitute the initial and basic criteria to achieve the required mechanical properties after a properlychosen tempering temperature.