Abstract
In support of accurate prediction of carbon content in austenite for control of austenite mechanical stability in "triple-phase" steels, paraequilibrium growth simulations with the DICTRA software were used to predict the carbon concentration profile at the ferrite-austenite interface during rapid cooling from an intercritical annealing temperature. A mobility model developed from previous literature data was used to estimate a temperature dependent interfacial dissipation energy function. Addition of the interfacial dissipation energy to the ferrite free energy lowers the austenite carbon content near the interface to levels consistent with experimental measurements of retained austenite average carbon content.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 141-149 |
| Number of pages | 9 |
| Journal | Acta Materialia |
| Volume | 53 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 3 2005 |
Funding
This research was carried out under the financial support of Ispat Inland, Inc. and the Office of Naval Research. The authors also thank Yasushi Mizutani of Nippon Steel Corporation for his help and useful discussions during the initial stages of this project.
Keywords
- Austenite
- DICTRA
- Dissipation energy
- Ferrite
- Interface
- Mobility
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Polymers and Plastics
- Metals and Alloys