Constitutive modeling of the deformation and phase transition mechanisms in partially stabilized ZrO2 ceramics as well as of the thermomechanical response of ceramic-steel composites (C04)

• Subject Area: Mechanics
• Term: from 2008 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 54473466

Stress induced martensitic phase transitions in zirconia have a major contribution to the overall thermomechanical response of TRIP-steel-ZrO2-composites. The aim of this project is to gain insight into the involved phase transitions on all length scales and to use these findings for the development of a constitutive law for cast TRIP-steel-ZrO2-composites. To this end we use methods from phenomenological continuum modelling, homogenization theory as well as phase field models based on Landau-Ginzburg theory in order to directly simulate the formation of microstructures.

• 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: Dr.-Ing. Michael Budnitzki; Professor Dr. Meinhard Kuna