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On the Formation of High Damping State in Fe-Al and Fe-Cr Alloys

Journal Solid State Phenomena (Volume 137)
Volume Interaction between Defects and Anelastic Phenomena in Solids
Edited by Igor S. Golovin and Daniil M. Levin
Pages 109-118
DOI 10.4028/www.scientific.net/SSP.137.109
Citation I.B. Chudakov et al., 2008, Solid State Phenomena, 137, 109
Online since March, 2008
Authors I.B. Chudakov, Nataly A. Polyakova, S.Yu. Mackushev, V.A. Udovenko
Keywords Damping Capacity, Electron Microscopy, Fe-Al Alloy, Fe-Cr Alloy, Heat Treatment, Magnetostriction
Abstract

High damping Fe - Cr and Fe - Al alloys have been studied in two different states: in the high damping state and in the suppressed damping capacity state. It has been shown that magnetic domain structures of Fe - Cr and Fe - Al alloys are fundamentally different in the high damping state and in the state with the suppressed damping. Magnetic domain structure corresponding to the high damping state can be characterized by an enhanced volume fraction of the easy movable 90o-domain walls, but the state with the suppressed damping capacity can be characterized by the enhanced volume fraction of the 180o-domain boundaries.

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