A Comparison of Hydrogen Embrittlement and Stress Corrosion Cracking in High Strength Steels

Abstract

The purpose of the study was to compare the known behavior of hydrogen embrittled high-strength steel to the characteristics of environmentally-induced stress corrosion failure where hydrogen is continuously generated at the specimen surface. The incubation time for the initiation of slow crack growth was accelerated by prestressing for a fixed time below the lower critical limit. These results obtained on high-strength steel in a stress corrosion environment were directly comparable to behavior of hydrogenated specimens. These data along with hydrogen diffusivity measurements and the insensitivity of the incubation time and crack growth rate to specimen thickness indicated that the stress corrosion process was controlled by the distilled water-metal surface reaction.

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1971
Accession Number
AD0726192

Entities

People

  • C. S. Kortovich
  • E. A. Steigerwald

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Crack Tips
  • Diffusion
  • Diffusivity
  • Embrittlement
  • Environment
  • Failure Mode And Effect Analysis
  • Ferrium
  • Heat Treatment
  • Hydrogen Embrittlement
  • Materials
  • Measurement
  • Mechanical Properties
  • Recovery
  • Stress Corrosion
  • Stresses
  • Surface Reactions
  • Tensile Strength

Fields of Study

  • Materials science

Readers

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