Effect of Tempered Martensite Volume Fraction on Final Properties of Cold Rolled and Tempered Al TRIP Steel 2006-01-1431
Tempered martensite assisted steels are of recent research interest for good strength and ductility combination. This paper discusses the effect of tempered martensite volume fraction on the final properties of cold rolled and subcritically annealed Al containing TRIP steel. The samples were TRIP annealed and the retained austenite volume fraction was measured using X-ray diffraction technique. The steel samples were subsequently cold rolled to obtain strain induced martensite, deformed ferrite and bainite in the microstructure. The final tempered martensite volume fraction corresponds to the initial retained austenite volume fraction of the steel. The cold rolled TRIP steel samples were subsequently subcritically annealed at 500°C for 1 hour to obtain tempered martensite, fine ferrite and bainite. Shear Punch testing was used to evaluate the mechanical properties. The properties are analyzed and the results are discussed.
Citation: Vikram, J., Elwazri, A., Yue, S., and Essadiqi, E., "Effect of Tempered Martensite Volume Fraction on Final Properties of Cold Rolled and Tempered Al TRIP Steel," SAE Technical Paper 2006-01-1431, 2006, https://doi.org/10.4271/2006-01-1431. Download Citation
J. Vikram, A. M. Elwazri, S. Yue, E. Essadiqi
McGill University, NRC-CANMET
SAE 2006 World Congress & Exhibition
Innovations in Steel Sheet Products & Processing & Steel Bar Products-SP-2035