The influence of deformation on the magnetic properties of alloys based on Ni3Al

N.V. Kazantseva1, V.P. Pilugin, V.A. Zavalishin, M.B. Rigmant, D.I. Davidov, N.N. Stepanova
1Institute of metal physics, Ural branch of Russian Academy of Science, Ekaterinburg, 6200990 S. Kovalevskoy st., 18
Deformation can lead both to increase, and to decrease the values of the magnetic susceptibility of alloys based on Ni3Al. The difference in the behavior of alloys takes place due to the different structure of the alloy as a result of the deformation. The formation of a nanocrystalline structure in intermetsllid Ni3Al leads to decrease of degree of order in the alloy as whole, and to the decrease of the magnetic susceptibility. During the deformation of heat-resistant alloys inside intermetallic particles of Ni3Al with a high level of order locally appear the defects complexes, within which a long-range order is destroyed. These complexes can be considered as ferromagnetic clusters, the occurrence of which increases the magnetic susceptibility of the initial paramagnetic alloy.
Received: 25 February 2013   Accepted: 13 April 2013
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