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Strength of Materials

, Volume 51, Issue 1, pp 69–75 | Cite as

Effect of Pin Diameters on the Wear Characteristics of Friction Pairs

  • Y. H. WeiEmail author
  • X. L. Wang
  • Y. P. Liu
  • L. J. Chen
Article
  • 10 Downloads

The tribological tests are carried out to assess the effect of pin diameters on wear characteristics via changing contact stresses and sliding speeds to provide support for choosing friction pair sizes. The friction couple is set as CuZn pins for medium carbon steel (No. 1045 steel) rings. The differential wear rate and its calculation formula are defined to express the line wear rate or the wear resistance of unit cross-section area. The effect of the pin end surface diameter on differential wear rate and its scale/increased multiplier are investigated. When the product (P × V = 0.095) is kept constant, the abrasion loss for the specimens of a small diameter (d1 = 0.6 mm) is lesser than that of the specimens of a large diameter (d2 = 4.0 mm). As compared to the sliding speed, the change in contact stresses exerts a greater influence on the wear behavior, especially for small-diameter specimens. The differential wear rate of small-diameter specimens is always higher than that of the specimens of a large diameter. The scale multiplier of the differential wear rate is always larger than that of the contact pressure stress, especially for small-diameter specimens.

Keywords

size effect dry sliding friction wear diameter differential wear rate 

Notes

Acknowledgments

The project is supported by the National Natural Science Foundation of China (51641509), the Foundation for University Cadre Teacher of Henan Province (2017GGJS111) and the Science and Technology Foundation of Henan (162102210086, 162102210243).

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

Authors and Affiliations

  • Y. H. Wei
    • 1
    Email author
  • X. L. Wang
    • 1
    • 2
  • Y. P. Liu
    • 1
  • L. J. Chen
    • 3
  1. 1.School of Mechatronics EngineeringZhengzhou University of AeronauticsZhengzhouChina
  2. 2.Collaborative Innovation Center for Aviation Economic Development of Henan ProvinceZhengzhouChina
  3. 3.School of Mechanical EngineeringTianjin Polytechnic UniversityTianjinChina

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