Accession Number : AD0767948

Title :   Diffusion and Nondiffusion Transformations of Metastable Phases in Titanium (A + B) Alloys,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Guskova,E. I. ; Ermolova,M. I.

Report Date : 04 OCT 1973

Pagination or Media Count : 15

Abstract : The study concerns four groups of metastable phases differentiated by their crystalline structure and concentration of beta-stabilizing elements in titanium alloys with transition metals. The transition mechanism of certain of the metastable phases cannot be fully explained at the atomic level solely on the basis of the pecularities of atom packing in the crystal lattice. In a first approximation, pictures of localized (responsible for the covalent bond) and nonlocalized (responsible for the metallic bond) electrons are useful; the change in the ratio between these electrons determines the extent of phase metastability and other properties of alloys based on transition metals.

Descriptors :   (*TITANIUM ALLOYS, *PHASE STUDIES), DIFFUSION, ALUMINUM ALLOYS, CHROMIUM ALLOYS, MOLYBDENUM ALLOYS, VANADIUM ALLOYS, NIOBIUM ALLOYS, USSR, SOLID STATE PHYSICS

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE