Thermodynamic-mechanical modelling of the TRIP-/TWIP-effect in austenitic as-cast steels (C03)

• Subject Area: Thermodynamics and Kinetics as well as Properties of Phases and Microstructure of Materials
• Term: from 2008 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 54473466

The physical model, which is based on the rule of mixtures for the prediction of transformation-induced plasticity and twinning-induced plasticity effects in as-cast austenitic steels, will be extended. With the aid of the transformation-temperature diagrams, the strength and strain contributions due to the induced deformation mechanisms will be quantified. Finally, a thermodynamic-mechanical model will be developed which allows to predict the deformation-induced martensitic transformation, deformation twinning, and the mechanical properties of TRIP/TWIP steels.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 799: TRIP-Matrix-Composites - Design of Tough, Transformation-Strengthened Composites and Structures Based on Fe-ZrO2
• Applicant Institution: Technische Universität Bergakademie Freiberg
• Project Heads: Privatdozentin Dr. Olga Fabrichnaya, Ph.D.; Professor Dr. Javad Mola, Ph.D., until 12/2018; Dr.-Ing. Marco Wendler