Abstract
The aging kinetics of an advanced austenitic steel, modified with stabilizing additions of titanium, niobium, and vanadium have been studied for both the solution annealed and the solution annealed plus cold work conditions, for times up to 3000 hours and temperatures of 600,700,800 and 900°C. Matrix phosphides, coarse MC carbides, leaves and χ phases were observed in the solution annealed condition. The cold worked steel also exhibited a fine distribution of MC carbides, precipitated on dislocations, which persisted for up to 3000 h at 900°C. These stable MC carbides, together with the absence of embrittling intermetallic phases, such as σ phase,provide an explanation for the orders of magnitude improvement in creep rupture properties observed in the cold worked advanced alloy compared with 316 stainless steel, alloy 800H and 17-14 CuMo stainless steel.
| Original language | English (US) |
|---|---|
| Title of host publication | High-Temperature Service and Time-Dependent Failure |
| Editors | R.W. Swindeman, Y. Asada, S.J. Chang, J.A. Todd |
| Publisher | Publ by ASME |
| Pages | 95-113 |
| Number of pages | 19 |
| Volume | 262 |
| ISBN (Print) | 0791809897 |
| State | Published - 1993 |
| Event | Proceedings of the 1993 Pressure Vessels and Piping Conference - Denver, CO, USA Duration: Jul 25 1993 → Jul 29 1993 |
Other
| Other | Proceedings of the 1993 Pressure Vessels and Piping Conference |
|---|---|
| City | Denver, CO, USA |
| Period | 7/25/93 → 7/29/93 |
All Science Journal Classification (ASJC) codes
- Industrial and Manufacturing Engineering
- Mechanical Engineering