Abstract
With reference to experimental data, the effects of stress, chemical composition, and transformation temperature on bainitic transformation kinetics are analysed. A decrease of transformation temperature or an increase of carbon equivalent results in a slow rate of bainitic transformation and reduces the promotive effect of stress induced transformation. Moreover, the relative effect of unit stress on kinetic parameter b in the Avrami equation for bainitic transformation is found to be in the 10-3 order of magnitude, and n (Avrami index) tends to increase with decrease of transformation temperature. A comprehensive model to depict bainitic transformation kinetics dependent on stress and chemical composition as well as transformation temperature is established.
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