STRUCTURAL AND POWER CHARACTERISTICS OF PLANAR DEFECTS IN THREE-COMPONENT ALLOYS OF SUPERSTRUCTURE 1,2*001

The object of the investigation is ordered alloys with superstructure 1,2*001. The purpose is structure and power of planar defects in superstructure 1,2*001, breaking down of the obtained defects, the investigation of microscopic elements of a plastic deformation by constructing gamma -surface. Analytical expressions for the energies of formation of antiphase boundaries and their complexes within the framework of a rigid sphere model have been received for three-component alloys of superstructure 1,2*001. Equilibrium atomic configurations and the energies forming isolated planar defects and their complexes have been achieved. The planar defects generated in the three-component alloys of superstructure 1,2*001 have been broken down according to the type of orientation and atomic shifts localized near them. Suppositions concerning a possibility of dislocation transformation in the superstructure have been made on the basis of the calculated values of the formation energies. Computer programs which make it possible to analyse the planar defects in crystals have been developed. The results can be used in research work at a number of universities, institutes and scientific organizationsAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio