About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Microstructural Control in Materials Processing: Role of Phase Transformation Pathways
|
| Presentation Title |
Magnetic Field-Assisted Processing of Martensitic Steels |
| Author(s) |
Megan Hurley, Ramon Padin-Monroig, Alexander Donald, James Hamlin, Michael Kesler, Michele Manuel, Mark Meisel, Victoria M. Miller |
| On-Site Speaker (Planned) |
Victoria M. Miller |
| Abstract Scope |
Magnetic field-assisted processing is a developing, energy-efficient alternative to current heat treatment processes in the steel industry, which leverages a high static magnetic field to shorten heat treatment times, alters phase transformation temperatures, and increases carbon solubility. Poor understanding of the mechanisms by which the magnetic field induces microstructural evolution limits further development of magnetic field-assisted processing methods for tailoring steel microstructures. The current investigation of low-alloy carbon steels uses electron backscatter diffraction to examine martensite morphologies and to reconstruct the prior austenite microstructures resulting from processing under varied magnetic field strengths. The magnetic field has a negligible effect on austenite grain size but appears to noticeably increase the fraction of grains with annealing twins. The role of the magnetic field on the martensitic transformation itself is also investigated. |