Fretting wear characteristics of 60Si2MnA steel for high-speed railway rail fastener clips

Zhangyue Qin, Yong Zeng, Chao Su, Mengxue Yi, Xinlu Yuan and Pingdi Ren

International Journal of Rail Transportation, 2024, vol. 12, issue 2, 327-345

Abstract: The fretting wear of rail fastener clips caused by wheel and rail vibrations can diminish their mechanical properties, negatively impacting high-speed train operation. However, the fretting wear characteristics of fastener clips are not yet known. In this work, the value range of the two key parameters of normal load and displacement amplitude of the fretting wear tests is determined by the multi-scale finite element analysis. Fretting wear tests are carried out systematically, and the fretting wear running characteristics and wear mechanism of the 60Si2MnA steel clip under normal service conditions are obtained. The results show that the clip has two fretting wear running regimes, the mixed fretting regime (MFR) and the gross slip regime (GSR). The wear mechanism in MFR is mainly characterized by abrasive wear, adhesive wear and oxidative wear. The wear mechanism in GSR is mainly characterized by abrasive wear, adhesive wear, oxidative wear, and fatigue wear.

Date: 2024
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DOI: 10.1080/23248378.2022.2164370

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