Ma Lei, Wang Wenjian, Guo Jun, Liu Qiyue
School of Mechanical Engineering, Xihua University, Chengdu 610039, China.
Tribology Research Institute, State Key Laboratory of Traction Power, Southwest Jiao Tong University, Chengdu 610031, China.
Materials (Basel). 2020 Mar 5;13(5):1152. doi: 10.3390/ma13051152.
The wear and fatigue behaviors of two newly developed types of high-speed railway wheel materials (named D1 and D2) were studied using the WR-1 wheel/rail rolling-sliding wear simulation device at high temperature (50 °C), room temperature (20 °C), and low temperature (-30 °C). The results showed that wear loss, surface hardening, and fatigue damage of the wheel and rail materials at high temperature (50 °C) and low temperature (-30 °C) were greater than at room temperature, showing the highest values at low temperature. With high Si and V content refining the pearlite lamellar spacing, D2 presented better resistance to wear and fatigue than D1. Generally, D2 wheel material appears more suitable for high-speed railway wheels.
使用WR-1轮轨滚动-滑动磨损模拟装置，在高温（50°C）、室温（20°C）和低温（-30°C）条件下，研究了两种新开发的高速铁路车轮材料（命名为D1和D2）的磨损和疲劳行为。结果表明，高温（50°C）和低温（-30°C）下轮轨材料的磨损损失、表面硬化和疲劳损伤大于室温，在低温下呈现最高值。由于高硅和钒含量细化了珠光体片层间距，D2比D1表现出更好的耐磨和抗疲劳性能。总体而言，D2车轮材料似乎更适合高速铁路车轮。
