期刊
TRIBOLOGY INTERNATIONAL
卷 125, 期 -, 页码 128-140出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2018.04.032
关键词
Fretting; Oxidative wear; Abrasive wear; Wear transition
Wear mechanisms of cobalt-based alloys are commonly known to be dependent on temperature: above a glaze layer transition temperature, wear rates are very low and a compacted oxidized compliant debris layer is spontaneously created in the contact. The present study focuses on the high wear rate mechanism occurring below this transition temperature of a HS25/alumina contact subjected to gross-slip fretting. The investigation shows that the wear volume is proportional to the product of the Archard's work multiplied by the oxide thickness generated between each fretting sliding pass. A simple tribo-oxidation wear model was developed and a very good correlation was observed with experiments as long as the compaction of debris layer leading to a glaze layer structure was not activated.
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