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

I.B. Chudakov; Nataly A. Polyakova; S.Yu. Mackushev; V.A. Udovenko

doi:10.4028/www.scientific.net/SSP.137.109

Paper Titles

Snoek-Type and Zener Relaxation in Fe-Si-Al Alloys
p.69

Room-Temperature Short-Range Ordering in Fe-Si Alloys Observed by Internal Friction
p.83

Mechanical Spectroscopy and Neutron Diffraction Studies in Fe-Al-Si Alloys
p.91

Mechanical Spectroscopy of the Fe-25Al-Cr Alloys in Medium Temperature Range
p.99

On the Formation of High Damping State in Fe-Al and Fe-Cr Alloys
p.109

On the Formation of High Damping State and Optimization of Structure of Industrial Damping Steels
p.119

Influence of Heat Treatment on Magnetic and Damping Properties of Fe-11 at.% Al Alloys
p.129

Influence of Thermal Cycling and Equivalent Heat Treatment on Amplitude Dependence of Internal Friction in Cu-Al-Mn Shape Memory Alloys
p.137

Mechanical and Fatigue Properties of Cu-Al-Mn Shape Memory Alloys with Influence of Mechanical Cycling on Amplitude Dependence of Internal Friction at Room Temperature
p.145

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

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.