Theory of a surface phase transformation induced by impurity atoms in binary alloys containing interstitial impurity atoms
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Mutual influence of the surface segregation of atoms on lattice sites and in interstitials is studied in the self-consistent field approximation. The effect of occurrence of a local surface phase transformation is predicted, which is caused by a local loss of stability of the statistical distribution of atoms of components on the surface due to the presence of interstitial impurity atoms. A theory is constructed for an induced phase transformation for  plane of a single crystal of a binary alloy with an fcc lattice whose octahedral interstitials are occupied by interstitial atoms.
KeywordsPhase Transformation Lattice Site Binary Alloy Local Surface Impurity Atom
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