Effect of High Pressure Torsion on Crystallization and Magnetic Properties of Fe73.9Cu1Nb3Si15.5B6.6

Author(s): Monika Antoni, Florian Spieckermann, Viktor Soprunyuk, Niraj Chawake, Baran Sarac, Jakub Zálešák, Christian Polak, Christoph Gammer, Reinhard Pippan, Michael Zehetbauer, Jürgen Eckert
Abstract: The effects of severe plastic deformation (SPD) by means of high pressure torsion (HPT) on the soft magnetic properties of the iron-based metallic glass Fe73.9Cu1Nb3Si15.5B6.6 are investigated. With this procedure, it has been possible for the first time to consolidate and deform this high-strength material with a minimum of cracks. X-ray diffraction, differential mechanical and differential scanning analyses, as well as optical and scanning electron microscopy were carried out for characterization of crystallization phenomena and crack formation. For magnetic properties, minor loop hysteresis measurements were done because of their high sensitivity for magnetic structures. Significant influences of HPT-processing on the coercivity as well as on magnetic anisotropy are found and discussed in detail.
Organisation(s): Physics of Functional Materials, Physics of Nanostructured Materials
External organisation(s): Montanuniversität Leoben, Vacuumschmelze GmbH & Co. KG, Österreichische Akademie der Wissenschaften (ÖAW)
Journal: Journal of Magnetism and Magnetic Materials
Volume: 525
No. of pages: 6
ISSN: 0304-8853
DOI: https://doi.org/10.1016/j.jmmm.2020.167679
Publication date: 2021
Peer reviewed: Yes
Austrian Fields of Science 2012: 103018 Materials physics
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials, Condensed Matter Physics
Portal url: https://ucrisportal.univie.ac.at/en/publications/54732cb5-b04e-4fdb-9ce1-d3c22feaeed3

Effect of High Pressure Torsion on Crystallization and Magnetic Properties of Fe<sub>73.9</sub>Cu<sub>1</sub>Nb<sub>3</sub>Si1<sub>5.5</sub>B<sub>6.6</sub>