Abstract
The dynamic recrystallization (DRX) behavior of as-extruded AM50 magnesium alloy was modelled and simulated by a cellular automaton (CA) method. Isothermal compression experiments were conducted, and the characteristic parameters in the CA model were obtained by the testing stress– strain flow curves in a wide temperature range of 250–450◦ C and strain rate range of 0.001–10 s−1. The flow stress, DRX volume fraction and DRX grain size of the as-extruded AM50 magnesium alloy were predicted by CA simulation. The results showed that the DRX behavior of the studied magnesium alloy was susceptive with the temperature and strain rate; meanwhile, the prediction results were approximate to the experimental values, indicating that the developed CA model can make a confident estimation on the DRX behavior of the as-extruded AM50 magnesium alloy in high temperature conditions.
| Original language | English |
|---|---|
| Article number | 75 |
| Pages (from-to) | 1-13 |
| Number of pages | 13 |
| Journal | Metals |
| Volume | 11 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2021 |
| Externally published | Yes |
Keywords
- AM50 magnesium alloy
- Cellular automaton
- Dynamic recrystallization
- Hot compression
- Microstructure evolution
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