International Seminar on Mechanics and Mechanisms of Solid-Solid Phase Transformations
J. Phys. IV France 06 (1996) C1-159-C1-174
Considering Stress-Phase Transformation Interactions in the Calculation of Heat Treatment Residual StressesS. Denis
Laboratoire de Sciences et Génie des Matériaux Métalliques, URA 159 du CNRS, Ecole des Mines de Nancy, Parc de Saurupt, 54042 Nancy cedex, France
The models for describing stress-phase transformation interactions (transformation plasticity and the effect of stress on transformation kinetics) are reviewed. It is shown that the macroscopic constitutive law that is generally used in the calculation of heat treatment residual stresses in steels allows to describe well the thermomechanical behaviour of the material in its transformation range. An analysis of the role of these interactions on the stress/strain evolutions during the heat treatment of a piece and on the residual stress states is proposed based on numerical simulations.
© EDP Sciences 1996