TERMINAL FRACTURE OF TITANIUM ALLOYS CONTAINING STRESS-CORROSION CRACKS,

Abstract

Approximately one hundred precracked notch bend specimens of Ti-6Al-4V and Ti-4Al-3Mo-1V, previously sustain loaded in 3.5% sodium chloride solution have been examined. The conditions for complete separation of the specimens were determined. In general, this occurred when the stress intensity at the border of the extending stress-corrosion crack reached the plane strain fracture toughness KIc. Observed deviations from this behavior were primarily attributed to crack length measurement difficulties. The fatigue precrack in specimens loaded to stress intensity levels below the threshold stress intensity level KIscc was not affected by the environment, i.e., there was no blunting. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 03, 1968
Accession Number
AD0672324

Entities

People

  • C. S. Carter

Organizations

  • Boeing Commercial Airplanes

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Alloys
  • Chemical Compounds
  • Chlorides
  • Corrosion
  • Elements
  • Environment
  • Intensity
  • Measurement
  • Metals
  • Sodium
  • Sodium Compounds
  • Stress Corrosion
  • Terminals
  • Titanium
  • Titanium Alloys
  • Toughness

Readers

  • Materials Science (Mechanical Engineering).