J. Phys. IV France 11 (2001) Pr4-181-Pr4-188
Bainitic transformation under stress in medium alloyed steelsM. Veaux1, 2, J.C. Louin1, J.P. Houin1, S. Denis1, P. Archambault1 and E. Aeby-Gautier1
1 LSG2M, UMR 7584 du CNRS, INPL, École des Mines, Parc de Saurupt, 54042 Nancy cedex, France
2 PSA, Centre Technique de Belchamp, 25420 Voujeaucourt, France
The effects of stress on bainitic transformation are measured in the case of isothermal transformations of three medium alloyed steels in a temperature range where the bainitic transformation is complete. The transformation kinetics variations and transformation plasticity evolutions are analysed for applied stress values ranging from zero up to about three times the yield stress of the austenite and compared to the results of the literature. Considering a quantitative analysis of the microstructures formed, the different related mechanisms are discussed.
© EDP Sciences 2001