Abstract
Hydrogen treatment is a new technique in metal forming which can improve the microstructure of titanium alloys, workability and mechanical properties with the hydrogen reversible alloying. Hydrogen absorption in titanium alloys could increase the proportion of the β-phase, decrease the flow stress and improve the superplasticity of titanium alloys, therefore reduce the requirement of deformation temperature and strain rate for superplastic forming. The ultra-fine grain with less than 1 μm obtained through combining severe plastic deformation with hydrogen treatment has good superplasticity at lower deformation temperature and higher strain rate. It is a new effective method for solving the problem for hard to deform of titanium alloys.
| Original language | English |
|---|---|
| Pages (from-to) | 60-64 |
| Number of pages | 5 |
| Journal | Cailiao Gongcheng/Journal of Materials Engineering |
| Issue number | 5 |
| State | Published - May 2005 |
| Externally published | Yes |
Keywords
- Deformation mechanism
- Hydrogen treatment
- Superplasticity
- Titanium alloy