Elevated Temperature Aqueous Stress-Corrosion of Stainless Steel.

Abstract

The susceptibility of austenitic 304 stainless steel to aqueous or dilute acid attack at ambient and elevated temperatures has been investigated. It is found that, unlike aluminum alloys, this material under the conditions investigated is not embrittled by pre-exposure to water vapour and it is concluded that this is due to the inability of hydrogen to permeate the oxide surface film during static testing. Slow strain rate testing in dilute acid, under free corrosion or cathodic potential, has shown that hydrogen embrittlement is an important factor in the intergranular stress corrosion cracking of austenitic stainless steel. Cathodic charging of thin foils with hydrogen was found to promote the formation on martensite and intergranular cracks. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1981
Accession Number
ADA099815

Entities

People

  • F. J. Humphreys
  • H. M. Flower
  • M. G. Lackey

Organizations

  • Imperial College London

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Alloys
  • Arsenates
  • Corrosion
  • Cracks
  • Embrittlement
  • Grain Boundaries
  • Hydrogen
  • Hydrogen Embrittlement
  • Materials
  • Mechanical Properties
  • Metals
  • Oxide Films
  • Stainless Steel
  • Steel
  • Strain Rate
  • Stress Corrosion
  • Stress Corrosion Cracking

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Surface Engineering/Surface Coating Technology.