STRESS CORROSION CRACKING OF Ti-8Al-1Mo-1V ALLOY IN METHANOL-HYDROCHLORIC ACID SOLUTIONS.

Abstract

Pitting potentials derived from polarization data for Ti-8Al-1Mo-1V in Ch3OH, CH3OH-HCl, and CH3OH-HCl-H2O media correlate well with the stress corrosion cracking results. The order of magnitude of activation energy for the temperature-dependent stress corrosion cracking process is in good agreement with a diffusion-controlled reaction, either involving hydrogen diffusion or a mass transport limited reaction involving Cl(-). Controlled potential experiments are consistent with an electrochemical mechanism. Thus, corrosion along an anodic path involving Cl(-) is concluded to be the mechanism of cracking of the alloy in CH3OH-HCl environments. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1968
Accession Number
AD0682008

Entities

People

  • David W. Seitz
  • Milton Levy

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Acids
  • Agreements
  • Alcohols
  • Chemical Compounds
  • Corrosion
  • Diffusion
  • Energy
  • Environment
  • Heat Of Activation
  • Hydrochloric Acid
  • Hydrogen
  • Material Degradation Processes
  • Methanols
  • Stress Corrosion
  • Stress Corrosion Cracking

Fields of Study

  • Materials science

Readers

  • Electrochemical Surface Science
  • Materials Science and Engineering.