Abstract ▼ AI-Helper

In the disk braking of the railway trains or automotive vehicles, kinetic energy of the vehicle is converted into thermal energy by friction between a brake disk and the pad materials. The thermal cracks that initiated on brake disk surface by friction heating have a seriously bad effect on brake pe...

In the disk braking of the railway trains or automotive vehicles, kinetic energy of the vehicle is converted into thermal energy by friction between a brake disk and the pad materials. The thermal cracks that initiated on brake disk surface by friction heating have a seriously bad effect on brake performance and maintainability for disk-pad brake systems. In this study, we show the comparative thermal fatigue test procedure and thermal crack analysis process to evaluate the thermal fatigue characteristics of candidate materials designed for development of heat-resistant brake disk material. We carry out the test for 5 newly developed materials then we comparatively analyze the thermal crack initiation and propagation to each specimen. As a result, we decide the best heat-resistant material by those test procedure and analysis process.