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- Title
Stress corrosion cracking of high-strength steels.
- Authors
Ramamurthy, Sridhar; Atrens, Andrej
- Abstract
The mechanisms of stress corrosion cracking (SCC) and hydrogen embrittlement were recently reviewed by Lynch in this journal. The present review, in contrast, focuses on the rate-limiting step of the SCC of low-alloy high-strength steels in water and particularly focuses on the influence of the applied stress rate on the SCC of low-alloy high-strength steels. Linearly increasing stress tests of low-alloy high-strength steels in distilled water indicated that the stress corrosion crack velocity increased with increasing applied stress rate until the maximum crack velocity, corresponding to vII in fracture mechanics tests in distilled water. Moreover, the crack velocity was dependent only on the applied stress rate and was not influenced by the steel composition. The rate-limiting step could be the rupture of a surface film, which would control the rate of metal dissolution and/or the production and transport of hydrogen to the crack tip or to the regions ahead of the crack tip.
- Publication
Corrosion Reviews, 2013, Vol 31, Issue 1, p1
- ISSN
0334-6005
- Publication type
Article
- DOI
10.1515/corrrev-2012-0018