Abstract
The superplastic bulging capabilities of a Ti-6Al-4V plasma arc welding (PAW) butt-welded plate was studied using simple bulging tests. The experimental results indicate that the PAW butt-welded plate possesses good superplastic bulging capability and the maximum bulge height can exceed the radius of the female die. During bulging, the acicular martensite microstructure of weld metal is transformed into the spherical α+ streak α microstructure. The bulging gas pressure has an optimum value under the same bulging condition. An actual superplastic bulge example was given for the application of PAW butt-welded plate.
| Original language | English |
|---|---|
| Pages (from-to) | 155-158 |
| Number of pages | 4 |
| Journal | Cailiao Kexue yu Gongyi/Material Science and Technology |
| Volume | 11 |
| Issue number | 2 |
| State | Published - Jun 2003 |
| Externally published | Yes |
Keywords
- Plasma arc welding
- Superplasticity
- Ti-6Al-4V
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