EFFECT OF HYDROGEN INDUCED SURFACE ASPERITIES ON FATIGUE CRACK CLOSURE IN ULTRAHIGH STRENGTH STEEL.

Khlefa A. Esaklul, Andrew G. Wright, William W. Gerberich

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

It appears that internal hydrogen has a considerable effect on the fatigue behavior of steels as has been demonstrated in this study and previous work on low strength steel. The effect of environment in general is controlled by both the availability of hydrogen at the crack tip and its influence on closure processes. The 'anomalous effect' of gaseous hydrogen on high and ultrahigh strength steels appears to be a result of the relative differences in hydrogen availability between dry hydrogen gas and moist environments.

Original languageEnglish (US)
Title of host publicationPerspect in Hydrogen in Met
PublisherPergamon Press
Pages705-710
Number of pages6
ISBN (Print)0080348130, 9780080348131
StatePublished - 1986

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