Tribology Letters

, Volume 34, Issue 3, pp 193–200 | Cite as

High Temperature Tribological Characteristics of Fe–Mo-based Self-Lubricating Composites

Original Paper
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Abstract

Fe–Mo-based self-lubricating composites were prepared by a powder metallurgical hot-pressing method. The tribological properties of Fe–Mo-based composites with varied CaF2 contents at high temperature were evaluated, and the effect of glaze films on the friction and wear characteristics of composites were analyzed. The results show that the introduction of CaF2 into Fe–Mo alloys improved the mechanical properties, and the best tribological properties of Fe–Mo–CaF2 composites were achieved at the CaF2 content of 8 wt% at both room temperature and 600 °C. The worn surface of Fe–Mo–CaF2 composite at 600 °C is characterized to plastic deformation and slight scuffing, and the improved tribological properties are attributed to the formation of lubricious glaze film that composed of high-temperature lubricants CaMoO4 and CaF2 on the worn surface of the composites.

Keywords

Metal–matrix composites Friction/wear High-temperature property 
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Notes

Acknowledgment

The authors would like to acknowledge the National Natural Science Foundation of China (Grant No. 50705094) and ‘‘Hundred Talents Program’’ of Chinese Academy of Sciences (Grant No. KGCX2-YW-804) for providing the financial support.

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Jiesheng Han
    • 1
  • Junhong Jia
    • 1
  • Jinjun Lu
    • 1
  • Jingbo Wang
    • 1
  1. 1.State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhouPeople’s Republic of China

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