期刊
SCRIPTA MATERIALIA
卷 60, 期 5, 页码 281-284出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2008.09.033
关键词
Titanium alloy; Dwell fatigue; Fatigue; Crack growth
类别
资金
- SNECMA groupe Safran
The dwell effect, which is known to induce a reduction in the fatigue life of titanium alloys at room temperature, is related to early crack initiation. The present results support faster crack growth rates. The governing mechanisms are identified by mean of scanning electron microfractographic observations. The potential role of the atmosphere is examined through comparative testing performed in air and in high vacuum in order to distinguish the specific contributions of cold creep and environment assistance. (C) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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