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The Oxidation Effect on the Exhaust Valve Seat Wear
Technical Paper
912509
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English
Abstract
Effects of the copper infiltration and the oxide formation on the wear behavior of the sintered exhaust valve seat material were investigated by the pin - on - disc wear test. By the copper infiltration, the wear properties were remakably improved, on the contrast, the oxide deteriorated the wear resistance. The friction coefficient and specific wear rate decreased with the applied load. The dominant wear mechanism was suggested as follows; the spalling of the bulk debris in the non-infiltrated sample and the mild oxidational wear in the infiltrated.
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Authors
- Jungseok Oh - Mabookri Advanced Engineering & Research Institute Hyundai Motor Co., KOREA
- Seungcheal Jung - Mabookri Advanced Engineering & Research Institute Hyundai Motor Co., KOREA
- Youngwoo Kim - Mabookri Advanced Engineering & Research Institute Hyundai Motor Co., KOREA
- Taewon Lim - Mabookri Advanced Engineering & Research Institute Hyundai Motor Co., KOREA
- Jeongki Kil - Mabookri Advanced Engineering & Research Institute Hyundai Motor Co., KOREA
Citation
Oh, J., Jung, S., Kim, Y., Lim, T. et al., "The Oxidation Effect on the Exhaust Valve Seat Wear," SAE Technical Paper 912509, 1991.Also In
References
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- Allen C. B. Sullivan J. L. Quinn T. F. T. “The Wear of Valve Seat Materials at Elevated Temperatures ” the 9th Leeds-Lyon Symp, Paper # 10-4 1982 279
- Miller A. E. “Wear in Steels ” J. of Metals Oct. 1983 56
- Ceichos H. Elsevier Scientific Pub. Co. 1978 105