Stress Corrosion Cracking Susceptibility of Beta Titanium Alloy 38-6-44: Candidate Alloy for Scout Torsion Bar.

Abstract

The threshold stress itensities for stress corrosion crack propagation in beta titanium alloy 38-6-44, Ti-3Al-8V-6Cr-4Mo-4Zr, has been determined in salt water and methanolic solutions. The alloy was immune to stress corrosion cracking in aqueous sodium chloride solutions (marine environment). However, in methanolic solutions, the alloy was very susceptible to SCC. This marked susceptibility in methanolic solutions can be mitigated by the addition of sodium nitrate as an inhibitor. Crack extension in the alloy was transgranular and failure occurred by brittle quasicleavage in methanolic solutions. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1974
Accession Number
AD0779414

Entities

People

  • Milton Levy
  • Walter F. Czyrklis

Organizations

  • United States Army Research Laboratory

Tags

DTIC Thesaurus Topics

  • Alloys
  • Corrosion
  • Crack Propagation
  • Cracks
  • Salt Water
  • Sodium
  • Sodium Compounds
  • Stress Corrosion
  • Stress Corrosion Cracking
  • Titanium
  • Titanium Alloys
  • Torsion Bars

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Materials Science and Engineering.