Accession Number : AD0253154

Title :   ATOMIC ARRANGEMENTS IN TITANIUM-MOLYBDENUM SOLID SOLUTIONS

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s) : DUPOUY, J.M. ; AVERBACH, B.L.

Report Date : 27 DEC 1960

Pagination or Media Count : 1

Abstract : The short range order and size effect coefficients as well as the thermal and static atomic displacements have been measured in bcc solid solutions of Ti-Mo using X-ray diffraction techniques. These solutions exhibit a strong preference for unlike near-neighbors even though a superlattice was not found. The size effect coefficients for the first shell of atoms were negative, indicating that the Mo atoms were smaller than the Ti atoms in solution. Centerto-center distances between the different pairs of nearest neighbor atoms were calculated from the size effect coefficients and the lattice parameters. Ti-Ti and Mo-Mo distances tended to approach the average distance in the solution at compositions between 20 and 50 at-% Mo. At 75% Mo the Mo-Mo distance was smaller than in pure Mo and this was taken to indicate an electron exchange in the solution. (Author)

Descriptors :   *MOLYBDENUM, *MOLYBDENUM ALLOYS, *TITANIUM, *TITANIUM ALLOYS, ATOMIC STRUCTURE, CRYSTAL LATTICES, PHASE STUDIES, SOLIDS, SOLUTIONS(MIXTURES), X RAY DIFFRACTION.

Distribution Statement : APPROVED FOR PUBLIC RELEASE