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권석진(Kwon Seok-Jin),서정원(Seo Jung-Won),이동형(Lee Dong-Hyung),소진섭(So Jin-ub),박승규(Park Sung-Kyu),최형수(Choi Hyung-Su) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.5월
Recently, several wheel for freight car in running had experienced the wheel failure due to fatigue crack, overheat braking and other factors. Severe heating of the wheel during tread braking was believed to be a contributing factor of derailment. It is necessary to evaluate the residual stress in wheel tread. In the present paper, the residual stress of wheel using x-ray diffraction system is investigated. the result shows that the residual stress of wheel is depend on the running distance and wear rate of wheel.