Accession Number:

AD0253154

Title:

ATOMIC ARRANGEMENTS IN TITANIUM-MOLYBDENUM SOLID SOLUTIONS

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s):

Report Date:

1960-12-27

Pagination or Media Count:

1.0

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

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE