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Simulation of Friction Heat Induced Phase Transformation in High Speed Train Wheel |
SU Hang; JI Huaizhong; ZHANG Yongquan; YANG Caifu; LIU Tong |
Division of Structural Material Research; Central Iron and Steel Research InstituteBeijing 100081; |
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Cite this article:
SU Hang; JI Huaizhong; ZHANG Yongquan; YANG Caifu; LIU Tong. Simulation of Friction Heat Induced Phase Transformation in High Speed Train Wheel. Acta Metall Sin, 2004, 40(9): 909-914 .
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Abstract Based on the finite element analysis of wheel/rail
friction and experimental data of
the phase transformation in wheel steel, the mechanism
of wheel thermal fatigue under high speed
and heavy load conditions was simulated. The changes of
temperature field under several operating conditions
(loading, braking time, running speed)
have been calculated, and its affection
on phase transformation zone in wheel
tread has been discussed. The peak
temperature of contact zone may reach over
austenitizing temperature under heavy load sliding. The depth of austenized
zone may reach at 1mm under the wheel tread. The increase of sliding speed
does not affect the depth of phase
transformation zone, but increase
the probability of phase transformation.
Both the peak temperature and the size of
phase transformation zone increased with increased loading.
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Received: 31 July 2003
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