The effect of a rough, textured surface and contact orientations on the fretting behavior of self-mated martensitic 34CrNiMo6 +QT steel was examined via a large annular flat-on-flat contact. A friction study accompanied by microscopy analyses was performed to provide a clear insight into fretting characteristics. In gross sliding, the rough surface revealed a lower delayed friction peak and the same steady-state friction as the fine-ground smooth one. In partial slip, the stable friction threshold was around 0.5 for both surfaces. The oxidation-abrasion and its combination with adhesion were observed as wear mechanisms in partial slip and gross sliding, respectively.
A. Zabihi, J. Juoksukangas, J. Hintikka, M. Honkanen, A. Mäntylä, J. Vaara, T. Frondelius, M. Vippola, An insight into the effect of rough surfaces and contact orientation on the fretting characteristics of quenched and tempered steel, Tribology International, Volume 189, 2023, 108963,
https://doi.org/10.1016/j.triboint.2023.108963 (open access)