Unied Theory of Transformation Plasticity and the Effect on Quenching Simulation

Abstract

Original scienc paper A phenomenological mechanism of transformation plasticity (TP) is discussed, in the rst part of the paper, why it takes place under a stress level even lower than the characteristic yield stress of mother phase: This is principally based on the difference in thermal expansion coefcient in both phases. Bearing in mind that it is also a kind of plastic strain, a unied plastic ow theory is derived by introducing the effect of progressing new phase into the yield function of stress, temperature and plasticity related parameters. Experimental results of the TP coefcient will be shown in the following section for some steels under tensile and compressive stress. As examples of the application of the theory and the data, metallo-thermomechanical simulation for a quenched blank gear wheel is executed to demonstrate the effect of TP.

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Cite this paper

@inproceedings{WakamatsuUniedTO, title={Unied Theory of Transformation Plasticity and the Effect on Quenching Simulation}, author={H Wakamatsu} }