M 46 Medvedeva, N. I. Electronic Structure and Magnetic Properties of the alfa and gamma Phases of Iron, Their Solutions with Carbon, and Cementite / N. I. Medvedeva, L. E. Kar'kina, A. L. Ivanovskii // The Physics of Metals and Metallography. - 2006. - Vol. 101, № 5. - P440-445 : il. - Bibliogr. : p. 444-445 (31 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ЖЕЛЕЗО -- ТВЕРДЫЕ РАСТВОРЫ -- УГЛЕРОД Аннотация: The full-potential LMTO method was used to comparatively analyze the band structure, magnetic and cohesive characteristics, energies of formation of α and γ iron, their carbon solid solutions, and cementite. It has been found that the solid solution γ-Fe + C, similarly to γ-Fe, is characterized by an antiinvar transition and that cementite demonstrates invar behavior. The similarity of curves of the density of states, cohesive energies, and magnetic moments for the supersaturated solid solution of carbon in the fcc iron and cementite suggests the preferable formation of cementite in regions of concentration inhomogeneity of carbon distribution in the solid solution of γ iron the solid solution of γ iron Полный текст |