Can Severe Plastic Deformation Tune Nanocrystallization in Fe-Based Metallic Glasses?

Autor(en)

Monika Antoni, Florian Spieckermann, Niklas Plutta, Christoph Gammer, Marlene Kapp, Parthiban Ramasamy, Christian Polak, Reinhard Pippan, Michael J. Zehetbauer, Jürgen Eckert

Abstrakt

The effects of severe plastic deformation (SPD) by means of high-pressure torsion (HPT) on the structural properties of the two iron-based metallic glasses Fe73.9Cu1Nb3Si15.5B6.6 and Fe81.2Co4Si0.5B9.5P4Cu0.8 have been investigated and compared. While for Fe73.9Cu1Nb3Si15.5B6.6, HPT processing allows us to extend the known consolidation and deformation ranges, HPT processing of Fe81.2Co4Si0.5B9.5P4Cu0.8 for the first time ever achieves consolidation and deformation with a minimum number of cracks. Using numerous analyses such as X-ray diffraction, dynamic mechanical analyses, and differential scanning calorimetry, as well as optical and transmission electron microscopy, clearly reveals that Fe81.2Co4Si0.5B9.5P4Cu0.8 exhibits HPT-induced crystallization phenomena, while Fe73.9Cu1Nb3Si15.5B6.6 does not crystallize even at the highest HPT-deformation degrees applied. The reasons for these findings are discussed in terms of differences in the deformation energies expended, and the number and composition of the individual crystalline phases formed. The results appear promising for obtaining improved magnetic properties of glassy alloys without additional thermal treatment.

Organisation(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

Österreichische Akademie der Wissenschaften (ÖAW), Montanuniversität Leoben, University of Dunaujvaros, Vacuumschmelze GmbH

Journal

Materials

Band

16

Anzahl der Seiten

14

ISSN

1996-1944

DOI

https://doi.org/10.3390/ma16031260

Publikationsdatum

02-2023

Peer-reviewed

Ja

ÖFOS 2012

103018 Materialphysik

Schlagwörter

ASJC Scopus Sachgebiete

Allgemeine Materialwissenschaften, Condensed Matter Physics

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/a18ceb13-ca13-42f8-8cac-8e9a584d432a