About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Quantitative Assessment of Short-range Order in Fe-Al and Fe-Ga Alloy Single Crystals |
| Author(s) |
Rahulkumar Sunil Singh, Andrew Laroche, Travis Willhard, Sivaraman Guruswamy |
| On-Site Speaker (Planned) |
Rahulkumar Sunil Singh |
| Abstract Scope |
Rare earth free α-Fe based Fe-Al alloys show a good combination of high strength, ductility, low-cost, moderate low-field magnetostriction, and wide range of operating temperatures, making them attractive for use in actuators and sensors. This study focuses on the quantitative assessment of short-range ordering (SRO) and its correlation with magnetostriction in Fe-Al alloy single crystal prepared using a vertical Bridgman growth process. SRO coefficients were obtained using the diffuse scattering peaks in the high resolution theta-2 theta scans of [100]-oriented (i) as-grown and (ii) high-temperature annealed Fe-16.4 at.% Al single crystals. XRD examinations of [220]- and [111]-oriented single crystals were also carried out to understand the nature of ordering. The SRO coefficients in Fe-16.4 at.% Al alloy single crystal samples were correlated with magnetostriction and compared with SRO coefficients for Fe-15 at.% Ga and Fe-20 at.% Ga with similar thermal histories. |
| Proceedings Inclusion? |
Planned: |