Abstract
Deformation can lead both to increase, and to decrease the values of the magnetic susceptibility of alloys based on Ni<sub>3</sub>Al. 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 Ni<sub>3</sub>Al 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 Ni<sub>3</sub>Al 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.<br />
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