한국윤활학회:학술대회논문집 (Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference)
- 한국윤활학회 1999년도 제29회 춘계학술대회
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- Pages.240-246
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- 1999
자동차용 브레이크 로터의 재료로 사용되는 회주철의 미세구조에 따른 마찰특성에 관한 연구
Effect of the Microstructure of Gray Cast Iron Disk on Friction Characteristics
- Cho, Min-Hyung (Division of Materials Science and Engineering, Korea University) ;
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Jang, Ho
(Division of Materials Science and Engineering, Korea University)
- 발행 : 1999.06.01
초록
The effect of microstructure of gray cast iron disk was investigated by using a pad-on-disk type friction tester. Three different rotors with different microstructures were studied in this work. They showed a pearlitic matrix, a ferritic matrix, and a martensitic structure, respectively. All of them have graphite flakes in common. Drag tests at different pressure and speed conditions were carried out to study friction stability, temperature rise during drags. The rotor containing pearlitic matrix showed lower values of friction coefficient, small amount of temperature rise, and less fading. The results showed that gray cast iron disk containing pearlitic matrix has good friction characteristics.