Study on the Wear Performance of Brake Materials for High-Speed Railway with Intermittent Braking under Low-Temperature Environment Conditions.

It can be seen from Figure 4 that under various temperature conditions, the instantaneous friction coefficient of intermittent braking generally fluctuated greatly, but during 10 min of operation, the instantaneous friction coefficient under various temperatures showed a trend of first increasing and then decreasing.

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The decrease in ambient temperature first caused an increasing and then a decreasing trend of wear rate of the brake disc and reached the maximum value (84.5 μg/r) at 0 °C.

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