HETEROGENEITY OF MAGNETIC STATE IN PLASTIC-DEFORMED ALLOYS NICKEL-COPPER AND SOME QUASI-BINARY RARE-EARTH INTERMETALLICS

The magnetic properties of the sub-microcrystalline alloys Ni-Cu manufactured by means of the strong plastic deformation have been investigated. The heterogeneity of the magnetic state in the alloys Ni-Cu, Pt-Co, Fe-C and quasi-binary rare-earth intermetallics has been investigated also. The dependence of the magnetic properties in the alloys Ni-Co upon the plastic deformation rate and following annealing temperature has been investigated. The appearance of the anomalies on the temperature dependences of the amplitude magnetic susceptibility and coercitive force, increase of the paramagnetic Courie temperature and decrease of the temperature interval of the ferromagnetic ordering in the deformed alloys have been discovered. It has been shown that in the alloys Ni-Co the heterogeneous cluster magnetic state stipulated with the effect of microlamination according to the composition in these non-ordered solid solutions under action of the plastic deformation is formed. The anomal growing of the coercitive force in some high-anisotropic ferro- and ferrimagnetics near Courie temperature depend strongly upon the structural and magnetic homonogeneity rate of the magnetics.Available from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio