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http://dx.doi.org/10.7736/KSPE.2016.33.7.541

Wear Characteristics of Wheel/Rail Material under Dry and Wet Conditions  

Seo, Jung Won (Fatigue and Fracture Research Team, Korea Railroad Research Institute)
Kwon, Suk Jin (Fatigue and Fracture Research Team, Korea Railroad Research Institute)
Jun, Hyun Kyu (Fatigue and Fracture Research Team, Korea Railroad Research Institute)
Lee, Dong Hyeong (Fatigue and Fracture Research Team, Korea Railroad Research Institute)
Publication Information
Journal of the Korean Society for Precision Engineering / v.33, no.7, 2016 , pp. 541-549 More about this Journal
Abstract
Rolling contact fatigue and wear on rails are inevitable in railway operations due to excessive wheel-rail contact stress. The wear is influenced by vehicle speed, contact pressure, environmental conditions, and many other factors. Speeding on a curved track causes many problems such as wear on the gauge of the rail and rolling contact fatigue. Managing environmental conditions can reduce problems on the wheel and rail interface. In this study, the wear characteristics of wheel and rail materials were investigated by twin-disc testing using various parameters. The results of the wear test indicated that the wear rate under dry conditions was larger than that under wet conditions. We found that contact fatigue damage occurred on the rail in dry conditions, however, the surface of the specimen under water remained smooth. Also, the friction coefficient in dry conditions was larger than in wet conditions.
Keywords
Railway wheel; Rail; Wear; Twin-Disc test;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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