Relationship between Parameters of Solid Solution and Grain Boundary Ensemble in Pd<sub>3</sub>Fe Ordered Alloy with L1<sub>2</sub> Superstructure

Abstract

By X-ray diffraction and scanning electron microscopy using the method of back-scattered electrons the parameters of the solid solution (the lattice parameter and the mean-square displacement of atoms) and the grain boundary ensembles in the alloy Pd3Fe with the superstructure L12 have been investigated depending on the degree of the long-range atomic order. The relationship between the proportion of the twins Σ3 in the spectrum of special boundaries and the mean-square displacement of atoms was detected.