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Achieving the excellent self-lubricity and low wear of TiAl intermetallics through the addition of copper coated graphite

Journal Article


Abstract


  • © 2020 Elsevier Ltd The present work achieves excellent lubricity and low wear of TiAl intermetallics by the addition of low-cost copper-coated graphite. 50% reduction of friction and more than one magnitude lower wear rate were obtained. This superior tribological property is attributed to the formation of a soft tribo-film and a synergetic effect of in-situ formed harder TiC reinforcement. This tribo-film contains some graphite nanoplatelets, shell-like carbon, TiC particles and the mixture of some oxides. This work is helpful not only for the development of new solid self-lubricating composites but also promotes a scientific understanding of the tribo-film of solid lubricants.

Authors


  •   Wang, Long (external author)
  •   Tieu, A Kiet.
  •   Zhu, Qiang (external author)
  •   Chen, Jiao (external author)
  •   Cheng, Jun (external author)
  •   Yang, Jun (external author)
  •   Kosasih, Buyung B.

Publication Date


  • 2020

Citation


  • Wang, L., Tieu, A., Zhu, Q., Chen, J., Cheng, J., Yang, J. & Kosasih, P. (2020). Achieving the excellent self-lubricity and low wear of TiAl intermetallics through the addition of copper coated graphite. Composites Part B: Engineering, 198

Scopus Eid


  • 2-s2.0-85087333772

Volume


  • 198

Place Of Publication


  • United Kingdom

Abstract


  • © 2020 Elsevier Ltd The present work achieves excellent lubricity and low wear of TiAl intermetallics by the addition of low-cost copper-coated graphite. 50% reduction of friction and more than one magnitude lower wear rate were obtained. This superior tribological property is attributed to the formation of a soft tribo-film and a synergetic effect of in-situ formed harder TiC reinforcement. This tribo-film contains some graphite nanoplatelets, shell-like carbon, TiC particles and the mixture of some oxides. This work is helpful not only for the development of new solid self-lubricating composites but also promotes a scientific understanding of the tribo-film of solid lubricants.

Authors


  •   Wang, Long (external author)
  •   Tieu, A Kiet.
  •   Zhu, Qiang (external author)
  •   Chen, Jiao (external author)
  •   Cheng, Jun (external author)
  •   Yang, Jun (external author)
  •   Kosasih, Buyung B.

Publication Date


  • 2020

Citation


  • Wang, L., Tieu, A., Zhu, Q., Chen, J., Cheng, J., Yang, J. & Kosasih, P. (2020). Achieving the excellent self-lubricity and low wear of TiAl intermetallics through the addition of copper coated graphite. Composites Part B: Engineering, 198

Scopus Eid


  • 2-s2.0-85087333772

Volume


  • 198

Place Of Publication


  • United Kingdom