Direct quenching and tempering (DQ-T) of hot rolled steel section has been widely used in
steel mill for the sake of improvement of mechanical properties and energy saving.
Temperature history and microstructural evolution during hot rolling plays a major role in the
properties of direct quenched and tempered products. The mathematical and physical
modeling of hot forming processes is becoming a very important tool for design and
development of required products as well as predicting the microstructure and the properties …