Accession Number:

ADA051181

Title:

Interfacial Energies of Some Elemental and Alloy Aerospace Materials.

Descriptive Note:

Final rept. 30 Jun 75-31 Dec 77,

Corporate Author:

KANSAS STATE UNIV MANHATTAN DEPT OF CHEMICAL ENGINEERING

Personal Author(s):

Report Date:

1978-01-20

Pagination or Media Count:

22.0

Abstract:

Previously unreported values of the grain boundary free energies for pure titanium and the titanium alloy Ti-6Al-4V and of the surface free energy for the titanium alloy, as well as a new value of the surface free energy for pure titanium, have been determined using the zero-creep technique for small diameter wires and measurements of the dihedral angle at the base of thermally-etched grain boundary grooves. The temperature coefficients of the surface free energies and of the grain boundary free energies, as well as the self-diffusion coefficients, for pure titanium and for the Ti-6Al-4V alloy are reported.

Subject Categories:

  • Metallurgy and Metallography
  • Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE