Abstract
The effectiveness of microstructure control using displacive reversion on creep property was verified in a metastable austenitic stainless steel with a chemical composition of Fe-14%Cr-11%Ni. The steel plates were cold-rolled until the austenite phase fully transforms to deformation-induce α' martensite, and then rapidly heated to 923K to reverse the martensite to austenite. By the thermomechanical treatment, fine lath austenitic structure containing high-density dislocation was formed with a mechanism of displacive reversion from deformation-induced α' martensite to austenite. The thermomechanical-treated specimen with lath structure had approximately two times longer creep fracture lifetime compared to the specimen with equiax-grained structure. This results means that the microstructure control to lath structure effectively enhances creep property of austenitic heat-resistant steel.
| Original language | English |
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| Title of host publication | 65th ABM International Congress, 18th IFHTSE Congress and 1st TMS/ABM International Materials Congress 2010 |
| Pages | 4278-4287 |
| Number of pages | 10 |
| Volume | 5 |
| Publication status | Published - 2010 |
| Event | 65th ABM International Congress, 18th IFHTSE Congress and 1st TMS/ABM International Materials Congress 2010 - Rio de Janeiro, Brazil Duration: Jul 26 2010 → Jul 30 2010 |
Other
| Other | 65th ABM International Congress, 18th IFHTSE Congress and 1st TMS/ABM International Materials Congress 2010 |
|---|---|
| Country/Territory | Brazil |
| City | Rio de Janeiro |
| Period | 7/26/10 → 7/30/10 |
All Science Journal Classification (ASJC) codes
- Mechanics of Materials