Abstract
Constant-stress compressive creep tests were carried out on an Al-rich α2 single-phase material, which had equiaxed-grains of 60μm in grain size, at 1050approx.1250 K under 100approx.500MPa. The type of the primary creep stage and the microstructures developed during creep depend greatly on the creep condition. The minimum creep-rate, however, can be represented by one set of parameters over the whole range of experimental condition. The stress exponent is 5.0±0.2 and the (modulus-compensated) activation energy is 360±10kJ/mol. The Dorn-type plot of the minimum creep rate reveals that the normalized creep strength of the fine-grained Ti-34mol%Al is not greatly different from that of disordered solid-solution hardened alloys.
| Original language | English |
|---|---|
| Pages (from-to) | 517-522 |
| Number of pages | 6 |
| Journal | Materials Research Society Symposium - Proceedings |
| Volume | 364 |
| Issue number | 1 |
| Publication status | Published - 1995 Jan 1 |
| Event | Proceedings of the 1994 MRS Fall Meeting - Boston, MA, USA Duration: 1994 Nov 28 → 1994 Nov 30 |
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering