Abstract
The stress relaxation method has been applied to the nickel-based alloy 80A to predict meta-dynamic (MDRX) and static recrystallization (SRX) kinetics. Compression tests were performed on a Gleeble 3800 system atr different temperatures (950-1200°C). The strain rate was varied in the case of MDRX and the pre-strain in the case of SRX. To investigate MDRX, the prestrain was set to twice the peak strain in order to reach steady state before holding. To focus on the interaction of MDRX and SRX, the pre-strain was set to the peak strain, where dynamic recrystallization (DRX) starts but does not yet reach steady state. Avrami type equations for the prediction of both the MDRX and SRX were adapted to feed a semi-empirical grain structure model.
| Original language | English |
|---|---|
| Pages (from-to) | 1237-1242 |
| Number of pages | 6 |
| Journal | Materials Science Forum |
| Volume | 467-470 |
| Issue number | II |
| Publication status | Published - 1 Jan 2004 |
| Externally published | Yes |
| Event | 2nd Joint International Conferences on Recrystallization and Grain Growth: ReX and GG2, SF2M 2004 - Annecy, France Duration: 30 Aug 2004 → 3 Sep 2004 |
Keywords
- Metadynamic recrystallization
- Static recrystallization
- Stress relaxation
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering