Effect of high pressure torsion on crystallization and magnetic properties of Fe73.9Cu1Nb3Si15.5B6.6

Abstract The effects of severe plastic deformation (SPD) by means high pressure torsion (HPT) on the soft magnetic properties iron-based metallic glass Fe73.9Cu1Nb3Si15.5B6.6 are investigated. With this procedure, it has been possible for first time to consolidate and deform high-strength material with a minimum cracks. X-ray diffraction, differential mechanical scanning analyses, as well optical electron microscopy were carried out characterization crystallization phenomena crack formation. For properties, minor loop hysteresis measurements done because their sensitivity structures. Significant influences HPT-processing coercivity anisotropy found discussed in detail.