Abstract

An explanation is given of the behavior with applied magnetic field of the weak biaxial magnetic anisotropy observed in pure polycrystalline nickel after plastic deformation. This explanation is based on the analysis of the superposition of torque curves corresponding to regions of orthogonal uniaxial magnetic anisotropies of magnetoelastic origin, produced by residual microstresses in tensile and compressive regions. These generate a biaxial torque curve in unsaturated specimens. This analysis explains some features of the observed biaxial anisotropy that cannot be understood by supposing that its origin is due only to a preferred orientation (texture) of the subgrain structure.

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