Abstract
Quenching and partitioning (Q&P) of steels is a processing strategy that can be used to create microstructures containing retained austenite and martensite, which may provide strength and ductility combinations of interest for 3rd generation advanced high strength steels (AHSS). The aim of Q&P is to stabilize the austenite by increasing its carbon content via partitioning from martensite. Thus, understanding the kinetics of transition carbide formation is important for the development of Q&P steels, since the formation of transition carbides may consume carbon that could otherwise be used to stabilize austenite. Advanced electron microscopy techniques were used to characterize Q&P microstructures and to determine the presence of transition carbides. Tensile properties were also determined, and dilatometry was used in some instances to perform Q&P heat treatments and determine relevant phase transformation temperatures.
| Original language | English |
|---|---|
| Title of host publication | PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 |
| Editors | Long-Qing Chen, Matthias Militzer, Gianluigi Botton, James Howe, Chadwick Sinclair, Hatem Zurob |
| Publisher | International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 |
| Pages | 1051-1058 |
| Number of pages | 8 |
| ISBN (Electronic) | 9780692437360 |
| State | Published - 2015 |
| Externally published | Yes |
| Event | International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015 - Whistler, Canada Duration: Jun 28 2015 → Jul 3 2015 |
Publication series
| Name | PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 |
|---|
Conference
| Conference | International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015 |
|---|---|
| Country/Territory | Canada |
| City | Whistler |
| Period | 06/28/15 → 07/3/15 |
Funding
Acknowledgements and Disclaimer This work was supported by the U.S. Department of Energy Advanced Manufacturing Office under Award Number DE-EE0005765. DRC, KDC, and AJC gratefully acknowledge support from Los Alamos National Laboratory, operated by Los Alamos National Security, LLC under Contract No. DE-AC52-06NA25396 for the U.S. Department of Energy. DTP, JGS, and EDM gratefully acknowledge the support from the sponsors of the Advanced Steel Processing and Products Research Center (ASPPRC), an industry/university cooperative research center. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof.
Keywords
- Electron diffraction
- Q&P steels
- Tem
- Transition carbides