A Study of Several Oxidation-Resistant Coatings on Mo-0.5Ti Alloy Sheet at 2,500 degrees F

Abstract

The results are presented of a study of several silicide-base oxidation-resistant coatings applied to 0.012-inch-thick molybdenum-alloy sheet. The specimens were both continuously and cyclically exposed at 2,500 degrees F in air. The effect of three different types of thermal cycles was investigated. A failure mechanism is proposed to explain the severe reduction observed in the ability of a coating to protect the substrate when thermally cycled. A failure mechanism for the continuously exposed coated specimens is also proposed. The investigation includes the results of X-ray studies and room-temperature mechanical-property tests on the coated specimens.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1964
Accession Number
ADA397534

Entities

People

  • Bland A. Stein
  • Donald R. Rummler
  • Richard A. Pride

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Beds (Process Engineering)
  • Body Weight
  • Coatings
  • Failure Mode And Effect Analysis
  • Materials
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Molybdenum Alloys
  • Oxidation Resistance
  • Pack Cementation
  • Silicon Carbide
  • Stresses
  • Tensile Properties
  • Tensile Strength
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Metallurgy
  • Surface Engineering/Surface Coating Technology.