It is shown that bending stresses detrimentally affect magnetic losses in Fe-Si ribbons at all frequencies, to an extent that is minimum at 6.7 wt% Si concentration. A magnetoelastically induced redistribution of the domains among the easy axes is assumed to be the leading cause for the observed extra losses upon bending. Addition of 0.15 wt% Mn, while not affecting the magnetic properties, is shown to improve the mechanical behavior of the relatively brittle low-loss high-Si alloys.
Effect of stress on magnetic losses and role of Mn addition in Fe-Si rapidly solidified ribbons
BARICCO, Marcello
2000-01-01
Abstract
It is shown that bending stresses detrimentally affect magnetic losses in Fe-Si ribbons at all frequencies, to an extent that is minimum at 6.7 wt% Si concentration. A magnetoelastically induced redistribution of the domains among the easy axes is assumed to be the leading cause for the observed extra losses upon bending. Addition of 0.15 wt% Mn, while not affecting the magnetic properties, is shown to improve the mechanical behavior of the relatively brittle low-loss high-Si alloys.
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