Journal
6TH INTERNATIONAL CONFERENCE ON CREEP, FATIGUE AND CREEP-FATIGUE INTERACTION
Volume 55, Issue -, Pages 636-644Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.proeng.2013.03.307
Keywords
Fatigue crack initiation; LCF; HCF; UHCF; fatigue lives; fatigue limit
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The primary cause of fatigue damage is usually intimately related to some form of cyclic slip irreversibilities. Depending on material and details of the loading conditions, various types of fatigue crack initiation are observed. Here, typical examples of fatigue damage evolution in low and high cycle fatigue (LCF, HCF) and ultrahigh cycle fatigue (UHCF) will be discussed. Various forms of fatigue damage and life-controlling microstructural mechanisms in different metals and alloys will be illustrated. ID particular, the fatigue properties of ultrafine-grained (UFG) materials will be discussed, and the microstructural mechanisms and the question of the existence of a fatigue limit in the UHCF regime will be considered. (C) 2013 The Authors. Published by Elsevier Ltd.
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