Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Effect of Carbon on Wear Resistance in Self-lubricating Fe-Cr-C-Mn-Cu Alloys

  • Kim, Ki Nam (Division of Materials Science and Engineering, Hanyang University) ;
  • Shin, Gyeong Su (Division of Materials Science and Engineering, Hanyang University) ;
  • Park, Myung Chul (Division of Materials Science and Engineering, Hanyang University) ;
  • Lee, Sung Yong (Division of Materials Science and Engineering, Hanyang University) ;
  • Yun, Jae Yong (Division of Materials Science and Engineering, Hanyang University) ;
  • Kim, Seon Jin (Division of Materials Science and Engineering, Hanyang University)
  • Received : 2012.02.16
  • Published : 2012.09.25
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Abstract

Recently, because of safety and environmental concerns, there has been a tendency to introduce solid self-lubricating composites for bearing materials. In this paper, we developed Fe-Cr-C-Mn-Cu cast composite alloys as a self-lubricating composite and investigated the effect of carbon on the formation of protective tribofilms during sliding. The wear resistance of these materials was mainly affected by carbon concentrations due to the fact that in particular wear passed from delamination to tribo-oxidation, reducing the wear rate. The improved wear resistance likely resulted from protective tribofilms that formed on the surface during sliding.

Keywords

Acknowledgement

Supported by : KESRI

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