STUDY OF DUCTILE COATINGS FOR THE OXIDATION PROTECTION OF COLUMBIUM AND MOLYBDENUM ALLOYS

Abstract

Air flow versus weight loss rate data on pure platinum has been extended to an air flow rate of 960 ipm at 2550 F. Increases in flow rate are seen to have a diminishing effect on weight loss rates at higher and higher flow rates. Diffusion studies were performed on platinum-2.5% palladium alloy clad FS-85 and TZM at 2550 F. The diffusion appeared to be transgranular and very rapid for both the TZM and the FS-85 base samples. It is expected that these studies will be extended to include platinum and platinum-10% rhodium alloy coatings during the next report period. Layers of gold, rhenium, aluminum, and boron nitride were deposited on refractory base metal for diffusion barrier studies. Evaluations of the samples containing aluminum and boron nitride have initially indicated that these materials will not be useful for diffusion barriers.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1964
Accession Number
AD0601740

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Flow
  • Aluminum
  • Base Metal
  • Body Weight
  • Ceramic Materials
  • Composite Materials
  • Flow Rate
  • Materials
  • Metals
  • Oxidation
  • Palladium
  • Palladium Alloys
  • Refractory Metal Alloys
  • Refractory Metals
  • Rhodium
  • Rhodium Alloys
  • Surface Properties

Fields of Study

  • Materials science

Readers

  • Fluid Dynamics.
  • Surface Engineering/Surface Coating Technology.