Abstract
A mathematical model has been developed to describe the thermal stress state of railroad rails. The model accounts for the kinetics of the austenite transformation during the process of staged quenching. Results obtained from modeling staged quenching have shown that it is possible to radically (to 100–110 MPa) reduce the residual stresses in rails as they are quenched to lower bainite in the head and lamellar pearlite in the flange.
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