Abstract
The effects of carbon on reversion behavior of metastable austenitic stainless steel were investigated using a 16.2% Cr- 8.8% Ni- 0.11% C steel. The steel used almost transforms to lath martensite (α′) from austenite (γ) by 90% cold rolling. The steel completely reverses on 923 K-10s annealing. However, isothermal α′ is produced on subsequent aging at room temperature (290 K) in case of more than 0.1 ks in 923 K isothermal annealing, and at 900 K and above in 0.6 ks isochronal annealing. In 923 K annealing, carbide precipitation occurred in preference to reversion. The carbide tends to retard a martensitic reversion and accelerated a diffusional reversion inversely. The grain size of γ reversed by a diffusional reversion at 923 K annealing is 0.2 μm dia. The carbide is effective for refining the grain by reversion.
| Original language | English |
|---|---|
| Pages (from-to) | 1186-1192 |
| Number of pages | 7 |
| Journal | Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan |
| Volume | 75 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jan 1 1989 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Metals and Alloys
- Materials Chemistry