Vacuum vs Atmosphere Heat Treatment for Titanium
Comparison of vacuum and atmosphere furnace heat treatment for titanium alloys.
Vacuum Heat TreatvsAtmosphere Heat Treat
Quick Answer
Vacuum heating prevents alpha case formation on titanium. Atmosphere is lower cost but requires post-treatment scale removal.
Key Differences
| Factor | Vacuum | Atmosphere |
|---|---|---|
| Alpha Case | None | 0.05-0.15 mm |
| Surface Finish | As-loaded | Oxidised |
| Cost Factor | 2-3x | 1x |
| Temperature Uniformity | 卤5掳C | 卤10掳C |
| Quench Rate | Slower (gas) | Faster (gas/liquid) |