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Project A1: Microstructure evolution during rolling and recrystallization

Person in Charge: Dipl.-Ing. Pierre Bienger
Motivation and aims:
The requirements for new materials in terms of mechanical properties increases with the advancing development of the product market. Higher quality standards on these materials are a result of these circumstance. These new standards will be inexpensively achieved and secured with a continuous simulation in the sheet metal assembly. This objective should be achieved by the modeling and simulation of the individual process steps. This includes rolling, recrystallization annealing and skin pass rolling. The main focus is the prediction of the evolving microstructure, texture and the resulting macroscopic properties.
Analysis Results
  • Rolling experiments
  • Annealing experiments and texture investigation
  • Thermo physical studies
  • Mechanical testing (cooperation with IfU Stuttgart)
  • Modeling of deformation and recrystallization texture (cooperation with A3)
  • Simulation of deformation and recrystallization textures: texture based models, phase field method
  • Phase field method  (cooperation with A3)
  • Coupling of texture based models with finite element method
  • Identification of material behavior for the simulation of the cold- rolling process by using finite element method (FEM) for the determination of texture evolution and the resulting macroscopic properties.
  • The state variables of the cold-rolling simulation are used as the input parameters for the subsequent simulation of heat treatment in A3 project.
  • Development of different experimental methods to analyze recrystallization mechanism during the annealing process. Further simulation should use those parameters to optimize the heat treatment process.