Abstract
Mechanism-based unified viscoplastic constitutive equations are developed to model the evolution of grain size, recovery, dynamic and static recrystallisation and their effects on viscoplastic flow of materials. This set of constitutive equations are determined for a C-Mn steel using a GA-based optimisation technique and implemented into the commercial FE solver ABAQUS for process simulations. Numerical procedures to simulate multipass rolling are developed. FE analysis is carried out to rationalise the evolution of grain size, dynamic/static recrystallisation and recovery, viscoplastic flow and stress relaxation in a multipass hot rolling process.
| Original language | English |
|---|---|
| Pages (from-to) | 723-728 |
| Number of pages | 6 |
| Journal | Journal of Materials Processing Technology |
| Volume | 143-144 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 20 Dec 2003 |
| Externally published | Yes |
Keywords
- Dynamic/static recrystallisation
- Multipass hot rolling
- Recovery
- Viscoplasticity
ASJC Scopus subject areas
- Ceramics and Composites
- Computer Science Applications
- Metals and Alloys
- Industrial and Manufacturing Engineering