期刊
TRIBOLOGY INTERNATIONAL
卷 130, 期 -, 页码 9-18出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2018.09.006
关键词
Fretting fatigue; Ni-based single crystal superalloys; Secondary orientation; Temperature effect
资金
- National Natural Science Foundation of China [11632010, 11572171]
A dovetail fixture for fretting fatigue test was designed. Fretting fatigue experiments were performed for Nibased single crystal (NBSX) superalloys at 600 and 700 degrees C in two secondary orientations, [110] and [010]. The influence of secondary orientation and temperature on fretting fatigue behavior was investigated. The crystal plasticity finite element (CPFE) simulation was used to study the stress field at the contact region. The result indicates that the stress distribution is correlated to fretting damage, which is consistent with the crack initiation site. Fretting fatigue life is predicted based on critical plane method, which is in good agreement with the experimental result.
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