par Godet, Stéphane 
;Delannay, F.;Jacques, Patrice
Référence Conference, 20th(09.10.2000 - 12.10.2000: St. Louis, MO, United States), Treating: Including Advances in Surface Engineering: An International Symposium in Honor of Professor Tom Bell and Professor Jerome B. Cohen Memorial Symposium on Residual Stresses in the Heat Treatment Industry, Vol. 1, page (535-538)
Publication Publié, 2000
;Delannay, F.;Jacques, PatriceRéférence Conference, 20th(09.10.2000 - 12.10.2000: St. Louis, MO, United States), Treating: Including Advances in Surface Engineering: An International Symposium in Honor of Professor Tom Bell and Professor Jerome B. Cohen Memorial Symposium on Residual Stresses in the Heat Treatment Industry, Vol. 1, page (535-538)
Publication Publié, 2000
Publication dans des actes
| Résumé : | TRIP (transformation induced plasticity) - assisted multiphase steels exhibit strength and ductility properties that are unique in low-alloy steels. This behavior is attributed to the dynamic work-hardening provided by the transformation of metastable retained austenite into martensite during straining. Usually two main factors are thought to influence the stability of austenite: its chem. compn. and its grain size. The effect of a third parameter on its stability: prior deformation and high temp. work-hardening of austenite - are studied. Specimens were strained into the intercrit. temp. range and then submitted to a bainitic transformation dwell. Typical multiphase microstructure were obtained. The work-hardening behavior of the steel grades strained at room temp. was enhanced by the prior deformation of austenite. |
