CORROSION FATIGUE OF Fe-Cr-Ni ALLOYS IN A HOT CONCENTRATED NaOH SOLUTION.

A. Boateng, J. A. Begley, R. W. Staehle

Research output: Contribution to journalArticlepeer-review

Abstract

In boiling (140 degree C) 17. 5M NaOH solution the measured crack growth rates of Type 304 did not show any accelerative environmental effect; there was also no significant effect of cyclic frequency, R ratio, or electrochemical potential. The different variables yielded similar fractographic features. For Inconel 600 the boiling caustic solution increased fatigue life relative to life in air, and anodic passivation was beneficial. Sensitization, found beneficial in sodium hydroxide, was detrimental in air. Delay of initiation is primarily responsible.

Original languageEnglish (US)
JournalMetallurgical Society of AIME, TMS Paper Selection
StatePublished - 1980

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