Stress-Corrosion Cracking of Metallic Materials. Part III. Hydrogen Entry and Embrittlement in Steel

Abstract

The chemical environment and metallurgical structure play important roles in the entry of hydrogen into iron and steel. In particular, the effect of compounds of sulfur, arsenic, phosphorus, selenium, and other elements, generally called 'cathodic poisoners,' is considered. The role of pH, electrochemical potential, stress, and temperature on the hydrogen entry kinetics is also considered. Metallurgical factors that influence the hydrogen entry and permeation rates include the alloy composition (substitutional and interstitial atoms), annealing and tempering (temperature, time), grain size, and the microstructure (form and distribution of carbides, etc.). The literature regarding the stress corrosion cracking of high-strength steel is reviewed. Studies of slow crack growth in gaseous environments are reviewed, with a comparison of crack growth behavior in both gaseous and aqueous media.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1975
Accession Number
ADA010265

Entities

People

  • Mars G. Fontana
  • Roger W. Staehle

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Synthesis
  • Chemistry
  • Ferrium
  • Geometry
  • Grain Size
  • Heat Of Activation
  • Heat Treatment
  • Iron
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Protons
  • Solid Solutions
  • Stress Corrosion Cracking
  • Sulfur Compounds
  • Tensile Strength

Fields of Study

  • Materials science

Readers

  • Materials Science and Engineering.
  • Metallurgy
  • Semiconductor Device Technology