Effect of Impurities and Temperature on the Interfacial Free Energies and Surface Diffusion of Refractory Metals.

Abstract

The average surface free energies of chromium, molybdenum, and tungsten have been measured at 0.6 to 0.8 of the absolute melting temperature by multiphase equilibrations with liquid tin or silver in tantalum-gettered argon. With grain boundary groove angles measured by interferometry and stylus profile tracing, the respective values were found. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 25, 1972
Accession Number
AD0738599

Entities

People

  • B. C. Allen

Organizations

  • Battelle Memorial Institute

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Chromium
  • Diffusion
  • Elements
  • Energy
  • Free Energy
  • Grain Boundaries
  • Group 6 Elements
  • Impurities
  • Metals
  • Molybdenum
  • Refractory Metals
  • Tantalum
  • Tungsten

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).