Preliminary Investigation of Effect of Environmental Factors on Salt Stress Corrosion Cracking of Ti8A1-1Mo-1V

Abstract

A preliminary experimental investigation was made on the effect of oxygen, moisture, pressure, surface condition, and salt composition on the salt stress corrosion cracking of Ti-8A1-lMo-lV titanium-alloy sheet (duplex annealed) at 550o F (56lo K) and 600o F (589o K). The results showed that both a reduction in the oxygen content and pressure reduced stress corrosion cracking. Thin surface oxide films and moisture in the ranges investigated had little or no effect on the amount of stress corrosion damage. NaCl caused more damage than ASTM salt (six parts NaCI to one part MgCl2, by weight). Moist chlorine produced severe stress corrosion cracking. TiCl2 appeared to be one of the main corrosion products.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1964
Accession Number
ADA393874

Entities

People

  • David N. Braski

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Advanced Electronics
  • C4I

DTIC Thesaurus Topics

  • Air Force
  • Alloys
  • Chlorine
  • Coatings
  • Corrosion
  • Diffraction
  • Diffraction Analysis
  • Encapsulation
  • Materials
  • Oxide Films
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Surface Properties
  • Titanium
  • Titanium Alloys
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Materials science

Readers

  • Combustion science or combustion engineering.
  • Materials Science and Engineering.