Powder Metallurgy and Metal Ceramics

, Volume 52, Issue 7–8, pp 424–430 | Cite as

Friction and Wear of Porous Sliding Bearings at High Temperature. Influence of MoS2 Nanoparticle Solid Lubricant


The paper is devoted to analysis of friction and wear of real porous sliding bearings modified with solid lubricant layers at high temperature. For this purpose, a special homemade friction tester was applied. The technology of sleeve nitriding is described. The results of the friction tests reveal about the achievement of quasi-hydrodynamic lubrication regime of powder bearings. The lowest friction coefficient is found to be f = 0.04 at 300°C. The great effect of wear rate diminishing is obtained at 300°C as interaction of microasperities is preserved at the sliding interface in quasi-hydrodynamic lubrication regime.


sliding friction wear sliding bearing powder materials quasi-hydrodynamic lubrication regime 


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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Metal Forming InstitutePoznanPoland

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