Material-based design of the extrusion of bimetallic tubes

Highlights
- Die designs for extrusion of bimetallic tubes are evaluated via multi-scale models.
- Microstructure and strain gradients in extruded tubes are quantified.
- Tradeoff between the gradients in tubes and required process capacity are discussed.
- FE-VPSC method is adapted to 2D axi-symmetric extrusions.