Journal of the Japan Institute of Metals and Materials
Online ISSN : 1880-6880
Print ISSN : 0021-4876
ISSN-L : 0021-4876
Wear Characteristics of Carbon Steel and 17Cr Stainless Steel in Relation to the Surface Temperature
Makoto KawamotoSusumu ShintaniTakumi SoneKunio Okabayashi
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1973 Volume 37 Issue 11 Pages 1236-1242

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Abstract
The wear characteristics of 0.42% C carbon steel and 17 Cr stainless steel rubbed against 17Cr stainless steel and 0.6% C carbon steel respectively were examined in relation to the temperature at the actual contact region (the flash temperature) and the mean temperature of the sliding surface. The wear tests were carried out by the pin-disc type machine under unlubricated condition. The flash temperature was obtained by measurement of the thermo-electromotive force developed between the sliding surfaces, and the mean temperature was calculated from the temperature gradient of the specimen measured by the thermo-couples.
In the condition where the flash temperature exceeded 300∼400°C, the wear of both materials decreased as the flash temperature was raised. At the flash temperatures in excess of 800°C, the wear was dominated by the mean temperature and increased as this temperature was raised. At the sliding speed more than that at which severe wear occurs, the wear was the smallest when the actual contact region reached the melting point or its neighborhood and the mean temperature was low. This cause may stem from the fact that the ruptures of the contact asperities occur in extremely thin layers, since only the interfaces of the asperities considerably soften or become viscous and the underlying metals have sufficient strength.
If the flash temperature and the mean temperature of the sliding surface are known, it will be possible to estimate any wear to occur. It is found that the temperature of the sliding surface is one of the most important factors which dominate wear.
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