The thermal behavior of atoms in ultrafine-grained Ni processed by severe plastic deformation.

Focuses on a study conducted on an ultrafine-grained (UFG) Ni sample which was processed by severe plastic deformation, using x-ray diffraction investigations in a temperature ranging from 85 to 295 K. Details on the thermal behavior of atoms in UFG Ni; Information on the temperature dependence of the lattice parameter; Calibration of the geometrical conditions of the instrument.