Abstract
The influence of partitioning temperature on carbon partitioning during the quench and partition (Q&P) cycle and the associated non-equilibrium phase transformation thermodynamics have been investigated. Lower partitioning temperatures are reported to result in higher carbon partitioning with varying austenite phase fraction. Thermodynamic simulations considering para-equilibrium conditions with an added temperature-dependent effective stored energy contribution have been shown to reasonably predict the retained austenite carbon content. The developed models have been validated with new alloy compositions, QP cycles and data from existing literature.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 6-10 |
| Number of pages | 5 |
| Journal | Scripta Materialia |
| Volume | 147 |
| DOIs | |
| State | Published - Apr 1 2018 |
Funding
The authors would like to acknowledge ArcelorMittal Global R&D, East Chicago, Indiana for providing the financial support and raw materials for the study. HEXRD experiments were performed at the DuPont-Northwestern-Dow Collaborative Access Team (DND-CAT) located at Sector 5 of the Advanced Photon Source (APS). DND-CAT is supported by Northwestern University, E.I. DuPont de Nemours & Co., and The Dow Chemical Company. The Advanced Photon Source is a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357.
Keywords
- 3DAP
- HEXRD
- Para-equilibrium
- Quench and partition
- Thermodynamic modeling
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys