EFFECT OF LOW TEMPERATURE ON APPARENT FATIGUE THRESHOLD STRESS INTENSITY FACTORS.

Khlefa A. Esaklul, Weikang Yu, William W. Gerberich

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Near-threshold fatigue crack growth in high-strength low-alloy (HSLA) steel, Fe, and Fe-Si alloys was found to depend on test temperature from room temperature down to 123 K. Near-threshold crack growth rates were lowered and threshold stress intensity factors increased with decreasing temperature. A 'prominent' closure was observed for all test temperatures and materials and was further confirmed by the examination of fracture surfaces. The magnitude of closure increased with decreasing temperature, suggesting a dependence on yield strength and fracture morphology.

Original languageEnglish (US)
Title of host publicationASTM Special Technical Publication
PublisherASTM
Pages63-83
Number of pages21
ISBN (Print)0803104111
StatePublished - Jan 1 1985

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