Abstract
Low-temperature plastic flow in TRIP steels has been found to be controlled by stress-assisted isothermal martensitic transformation. For these conditions, the thermodynamics and kinetic theory of martensitic transformations leads directly to constitutive relations predicting the dependence of flow stress on temperature, strain, strain-rate, and stress-state, consistent with the observed behavior of TRIP steels. Guidelines are obtained for the control of temperature sensitivity, σ -ɛ curve shape, and stress-state effects to achieve novel mechanical properties.
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R. Léal, Massachusetts Institute of Technology, Dept. Mat. Sci. and Eng., doctoral research in progress.
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Olson, G.B., Cohen, M. Stress-assisted isothermal martensitic transformation: Application to TRIP steels. Metall Trans A 13, 1907–1914 (1982). https://doi.org/10.1007/BF02645934
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DOI: https://doi.org/10.1007/BF02645934