Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
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The Effect of Graphite Morphology and Ferrite in Automotive Gray Cast Iron Rotor on Friction Characteristics

자동차용 회주철 로터내의 편상흑연과 페라이트의 형상에 따른 마찰특성에 관한 연구

  • Cho, Min-Hyung (Division of Materials Science and Engineering, Korea University) ;
  • Jang, Ho (Division of Materials Science and Engineering, Korea University)
  • 조민형 (고려대학교 재료금속공학부) ;
  • 장호 (고려대학교 재료금속공학부)
  • Published : 1999.11.01
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Abstract

The effect of the microstructure of gray cast iron on friction properties was investigated by using a pad-on-disk type friction tester. Cast iron samples used in this investigation were obtained from "step block" castings, which were designed to produce microstructure with different graphite flake morphologies from different cooling rate and solidification rate. Results of this work showed that the gray cast iron disks with long graphite flakes showed less fading. The rotors containing smaller amounts of ferrite showed higher friction coefficient and better fade resistance than others.an others.

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