Abstract

The influence of severe plastic deformation in a Bridgman cell on the magnetic properties of amorphous alloys of metal-metalloid type, Ni44Fe29Co15Si2B10, Fe74Si13B9Nb3Cu1, Fe57.5Ni25B17.5, Fe49.5Ni33B17.5, and Fe70Cr15B15, obtained by melt spinning, has been investigated. It is found that the saturation magnetization significantly changes (increases or decreases), depending on the number of ferromagnetic and antiferromagnetic components in the alloy. It is suggested that very high shear stress causes internal phase decomposition in the amorphous matrix into nanoscale regions, enriched or depleted with ferromagnetic components.

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