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Tribology Letters

, 68:9 | Cite as

The Relation Between Subsurface Stresses and Useful Wear Life in Sliding Contacts

  • Hossein Fereidouni
  • Saleh Akbarzadeh
  • M. M. KhonsariEmail author
Original Paper
  • 22 Downloads

Abstract

Equations for quantifying the subsurface shear stress in dry point contact are utilized to obtain the value and location of the maximum subsurface shear stress. A series of experiments using a pin-on-disk tribometer is conducted on run-in specimens made of steel, brass, and aluminum, and the weight loss and wear rate of the specimen are measured. The results reveal a correlation between the depth of the maximum subsurface shear stress obtained from the model and the measured wear rate. It is shown that at the onset of failure, the friction coefficient suddenly increases. This increase affects the location of maximum subsurface shear stress by pushing it toward the surface and producing wear particles. SEM images of all three friction-pair tested reveal that the size of the wear particles is directly related to the applied load.

Graphical abstract

Keywords

Wear Subsurface stress Friction coefficient Pin-on-disk test 

Notes

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringIsfahan University of TechnologyIsfahanIran
  2. 2.Department of Mechanical and Industrial EngineeringLouisiana State UniversityBaton RougeUSA

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