Wear Behavior and Self Tribofilm Formation of Infiltration-Type TiC/FeCrWMoV Metal Ceramics Under Dry Sliding Conditions

• Wang Yanjun

  School of Mechanical Engineering, University of Jinan

• Yang Zhenyu

  Department of Energy Technology, Aalborg University

• Han Liying

  School of Mechanical Engineering, University of Jinan

• Yang Takayuki

  School of Mechanical Engineering, University of Jinan

• Wang Shouren

  School of Mechanical Engineering, University of Jinan

抄録

A new type high temperature self-lubrication TiC/FeCrWMoV metal ceramic was fabricated successfully by applying an innovating technology which molten solid lubricant (60Pb40Sn-15Ag-0.5RE) was infiltrated into metal ceramic preforms with an interpenetrating network using a vacuum high pressure infiltration furnace. The friction and wear behaviors of the composites were investigated using a pin-on-disk high temperature wear testing machine at different temperature (up to 800°C). The compositions, images and structures of worn surfaces were analyzed by means of scanning electron microscope (SEM), energy dispersive X-ray analysis (EDXA) and X-ray diffraction (XRD). The self-lubrication mechanisms of the composites were discussed. The experimental results indicated that during elevated temperature sliding, the solid lubricants were squeezed out of the micropores to the frictional surfaces to form PbMoO₄, PbO, SnWO₄, Ag₂WO₄ and Ag₃Sn. The formation of lubrication film containing of these oxides and of intermetallic compounds was the main reason that the composites had good self-lubrication properties at high temperature. It was considered that the micro-pores on friction surface would be the crucial factors determining the self-lubricating properties of the self-lubrication composites.

収録刊行物

• Tribology Online

  Tribology Online 10 (2), 121-126, 2015

  一般社団法人 日本トライボロジー学会

キーワード

• metal ceramics
• self-lubrication mechanisms
• wear behavior
• infiltration
• high temperature

詳細情報

• CRID: 1390282680246632960
• NII論文ID: 130005065511
• DOI: 10.2474/trol.10.121
• ISSN: 18812198
• ISSN: 1881218X
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可