Structural state of a radiation-modified Ti50Ni47Fe3 single crystal in the low-temperature range

The structural state of a Ti₅₀Ni₄₇Fe₃ single crystal irradiated by fast neutrons has been investigated using thermal neutron diffraction at a temperature of 78 K. The current interest expressed in this problem is caused by the search for a radiation-resistant material with the shape memory effect. It has been found that the main structural motif of the crystal exposed to irradiation is retained but martensitic transformations are absent. The radiation resistance of crystals of this class has been evaluated.