About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Advances in Magnetic Materials
|
Presentation Title |
Low Magnetostrictive Materials Produced by Severe Plastic Deformation |
Author(s) |
Alexander Paulischin, Michael Zawodzki, Stefan Wurster, Heinz Krenn, Reinhard Pippan, Andrea Bachmaier |
On-Site Speaker (Planned) |
Alexander Paulischin |
Abstract Scope |
In this study, the focus is on the influence of the chemical composition on the magnetostrictive behavior of Fe-rich FeCu alloys produced by high pressure torsion (HPT), a method of severe plastic deformation. Powder blends of ferromagnetic Fe and diamagnetic Cu with nominal Cu-contents between 0 - 30 at. % are compacted and subsequently HPT-deformed, resulting in the formation of a nanocrystalline microstructure. In addition, an increased solubility of Cu in the Fe-matrix is achieved for low amounts of Cu. Strain gauges are used to measure the magnetostrictive behavior of the processed powder blends in magnetic fields up to 2T. When comparing to literature values of pure Fe, a strong decrease in magnetostriction for small amounts of Cu was found. Furthermore, SQUID magnetometry, microstructural investigations using scanning electron microscopy, atom probe tomography as well as synchrotron X-ray diffraction techniques are performed to characterize the investigated alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Magnetic Materials, Powder Materials, Other |