HYDROGEN EMBRITTLEMENT OF STEELS

Abstract

The effect of H on the ductility (e) of SAE-1020 steel was studied at strain rates (e) of o.05 to 19,000 in./in./min at temperatures (T) from -320 to +150 F. The ductility surface of the embrittled steel revealed 2 domains: (1) one for which at temperatures below the minima in the ductility curves and (2) the other for which at temperatures above the minima. The H embrittlement mechanism accounts for only the first domain. Surfaces of the second type can be rationalized by an extension of the competitive-rate hypothesis. The nature of the temperature-sensitive process is considered to decrease with temperature and to cause embrittling. (See also AD2617)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1953
Accession Number
AD0014013

Entities

People

  • Jack T. Brown
  • W. M. Baldwin

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Compounds
  • Coefficients
  • Energy
  • Engineering
  • High Temperature
  • Hydrogen Embrittlement
  • Iron
  • Low Temperature
  • Materials
  • Materials Laboratories
  • Mathematics
  • Metallurgy
  • Military Research
  • New York
  • Physics Laboratories
  • Standards
  • Strain Rate

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  • Materials Science and Engineering.
  • Mechanical Engineering/Mechanics of Materials.
  • Metallurgy