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Tribological performance of CrN and CrN/GLC coated components for automotive engine applications

Journal Article


Abstract


  • Modern automotive systems strictly demands increased mechanical and thermal loads, a longer service

    life and the weight reduction. Low friction hard coatings are extensively used in power train and engine

    applications by wear inhibition and friction reduction. The present study evaluates friction and wear

    responses of CrN and CrN/GLC coatings in different lubricated conditions. Results showed that, the

    presence of GLC surface not only lowered friction significantly by 67% under oil-starved or even dry

    conditions, but also obtained a pronounced decrease in wear by 70% for the opposite surface in the oillubricated

    environment, as compared to CrN coating. GLC application thus allowed the engine components

    to operate more reliably and durably when improper conditions happened. A tribochemical layer

    with the responsive character accounted for superior performance of GLC/CrN coating, which derived

    from the interactions of the additive in oil with the rubbing surfaces. The information on the correlation

    of performance with physics and chemistry of the rubbing interface was provided.

Authors


  •   Wan, Shanhong
  •   Pu, Ji Bin (external author)
  •   Li, Dongshan (external author)
  •   Zhang, Guang'an (external author)
  •   Zhang, Bo (external author)
  •   Tieu, A Kiet.

Publication Date


  • 2017

Citation


  • Wan, S., Pu, J., Li, D., Zhang, G., Zhang, B. & Tieu, A. Kiet. (2017). Tribological performance of CrN and CrN/GLC coated components for automotive engine applications. Journal of Alloys and Compounds, 695 433-442.

Scopus Eid


  • 2-s2.0-84995511326

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1928

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 433

End Page


  • 442

Volume


  • 695

Place Of Publication


  • Netherlands

Abstract


  • Modern automotive systems strictly demands increased mechanical and thermal loads, a longer service

    life and the weight reduction. Low friction hard coatings are extensively used in power train and engine

    applications by wear inhibition and friction reduction. The present study evaluates friction and wear

    responses of CrN and CrN/GLC coatings in different lubricated conditions. Results showed that, the

    presence of GLC surface not only lowered friction significantly by 67% under oil-starved or even dry

    conditions, but also obtained a pronounced decrease in wear by 70% for the opposite surface in the oillubricated

    environment, as compared to CrN coating. GLC application thus allowed the engine components

    to operate more reliably and durably when improper conditions happened. A tribochemical layer

    with the responsive character accounted for superior performance of GLC/CrN coating, which derived

    from the interactions of the additive in oil with the rubbing surfaces. The information on the correlation

    of performance with physics and chemistry of the rubbing interface was provided.

Authors


  •   Wan, Shanhong
  •   Pu, Ji Bin (external author)
  •   Li, Dongshan (external author)
  •   Zhang, Guang'an (external author)
  •   Zhang, Bo (external author)
  •   Tieu, A Kiet.

Publication Date


  • 2017

Citation


  • Wan, S., Pu, J., Li, D., Zhang, G., Zhang, B. & Tieu, A. Kiet. (2017). Tribological performance of CrN and CrN/GLC coated components for automotive engine applications. Journal of Alloys and Compounds, 695 433-442.

Scopus Eid


  • 2-s2.0-84995511326

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1928

Has Global Citation Frequency


Number Of Pages


  • 9

Start Page


  • 433

End Page


  • 442

Volume


  • 695

Place Of Publication


  • Netherlands