Abstract
The transformation temperature decreases with increasing Y//2O//3 content. The equilibrium concentration of t-phase in alloys annealed at 1600 degree C(1873 K), 1700 degree C(1973 K) and 1800 degree C (2073 K) was determined and it was found that the solubility limit of Y//2O//3 in t-phase increased with temperature. The as-annealed PSZ was composed of (t plus c) phases, but the m reversible reaction t transformation took place more easily by cyclic heating. These transformations can proceed isothermally with release of the transformation-induced internal stress by slow cracking. The t yields m transformation is suppressed by rapid cooling but the m yields t transformation is not affected by heating rate.
| Original language | English |
|---|---|
| Pages (from-to) | 108-113 |
| Number of pages | 6 |
| Journal | Nippon Kinzoku Gakkai-si |
| Volume | 50 |
| Issue number | 1 |
| Publication status | Published - 1986 Jan 1 |
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Metals and Alloys
- Materials Chemistry