Inhibition of Crack Propagation of High Strength Steels through Single and Multifunctional Inhibitors

Abstract

Oxidizing inhibitors may be used to retard crack propagation for high strength low alloy steels. For D6AC the use of such inhibitors gives promise of being able to avoid hydrogen embrittlement. The critical stress intensity factor KIscc apparently may also be manipulated by use of oxidizing inhibitors. Preliminary data on multifunctional inhibitors indicate that combinations of cathodic and anodic types is more effective than the common anodic inhibitors such as chromate Hydrazine and the related nitrite ion are more effective inhibitors than chromate for steel in the presence of chlorides.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1976
Accession Number
ADA030875

Entities

People

  • Charles T. Lynch
  • Kirit J. Bhansali
  • Phillip A. Parrish

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Alloys
  • Chemical Synthesis
  • Chemistry
  • Chromium Compounds
  • Corrosion
  • Crack Propagation
  • Cracks
  • Hydrogen
  • Hydrogen Embrittlement
  • Hydroxides
  • Inhibitors
  • Materials
  • Materials Laboratories
  • Materials Science
  • Sodium Compounds
  • Stress Corrosion
  • Stress Corrosion Cracking

Readers

  • Cellular and Molecular Pathways of Apoptosis.
  • Materials Science (Mechanical Engineering).
  • Surface Engineering/Surface Coating Technology.