Abstract
Based on the models about transformation kinetics, transformation plasticity and creep strain, a numerical modeling used to simulate the metallo-thermo-mechanical behaviors during quenching and tempering is presented. And this modeling is coded into program Numerical Simulation of Heat Treatment (NSHT), which is verified to be effective in simulation of heat treatment by comparing with the measured results. With this program, conventional quenching and tempering processes used for treatment of a 6 MW rotor are analyzed, the calculated results of which are compared with those of the newly designed processes. Based on these comparisons, some pieces of advice about heat treatment are given as instructions to industrial processing, which are proved to be effective in industry.
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