Abstract
Microstructure evolution of SAF2205 duplex stainless steel during torsion deformation was studied at elevated temperatures (600, 800 and 1000 °C). The results indicate that different degrees’ recrystallization phenomena appear and the morphology of austenite is different for the deformed samples. The volume fraction of austenite decreases with the increase of deformation temperature. The fracture morphology of the deformed sample at 800 °C is quite different from that of deformed sample at room temperature. The ductile fracture occurs when the torsion is carried out at the room temperature. Also, the equiaxed and parabolic dimples are observed on fracture surface. However, the fracture morphology of the deformed sample at 800 °C is mainly covered by the intergranular fracture.
| Translated title of the contribution | SAF2205双相不锈钢在高温扭转变形条件下的组织演化 |
|---|---|
| Original language | English |
| Pages (from-to) | 1689-1694 |
| Number of pages | 6 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 47 |
| Issue number | 6 |
| State | Published - 1 Jun 2018 |
Keywords
- Fracture morphology
- Hot torsion
- Microstructure evolution
- SAF2205 duplex stainless steel