Avoiding the high friction peak in fretting contact

  • Janne Juoksukangas Tampereen yliopisto
  • Jouko Hintikka Tampereen yliopisto
  • Arto Lehtovaara Tampereen yliopisto
  • Antti Mäntylä Wärtsilä
  • Joona Vaara Wärtsilä
  • Tero Frondelius Wärtsilä, Oulun yliopisto

Abstrakti

Fretting fatigue and wear may exist if two parts have small amplitude relative rubbing between the contacting surfaces. A peak in the coefficient of friction typically occurs during the first thousands of loading cycles in dry fretting contact with quenched and tempered steel. This peak is related to adhesive friction and wear causing non-Coulomb friction and high local contact stresses possibly leading to cracking. The focus of the study is the effect of different experimental methods on the frictional behavior of the fretting contact between the steel surfaces. The use of pre-corroded specimens and contact lubrication delayed and reduced the initial peak. However, a pre-added third body layer removed the peak completely.

Osasto
XIII Suomen mekaniikkapäivien 2018 erikoisnumero
Julkaistu
maalis 13, 2020
Viittaaminen
Juoksukangas, J., Hintikka, J., Lehtovaara, A., Mäntylä, A., Vaara, J., & Frondelius, T. (2020). Avoiding the high friction peak in fretting contact. Rakenteiden Mekaniikka, 53(1), 12-19. https://doi.org/10.23998/rm.76266