| Issue |
MATEC Web Conf.
Volume 417, 2025
2025 RAPDASA-RobMech-PRASA-AMI Conference: Bridging the Gap between Industry & Academia - The 26th Annual International RAPDASA Conference, joined by RobMech, PRASA and AMI, co-hosted by CSIR and Tshwane University of Technology, Pretoria
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| Article Number | 08009 | |
| Number of page(s) | 8 | |
| Section | Product Design and Development | |
| DOI | https://doi.org/10.1051/matecconf/202541708009 | |
| Published online | 25 November 2025 | |
The wear and rolling contact fatigue behaviour of AAR Class C wheel and R350 HT rail using a twin-disc tribometer under dry conditions
1 Metallurgical Engineering, Department of Materials Science and Engineering, University of Pretoria, Pretoria, South Africa
2 Advanced Materials Division, MINTEK, Randburg, South Africa
The wear and rolling contact fatigue (RCF) behaviour of AAR Class C wheels and R350 HT rail was investigated under dry testing conditions. The RCF crack morphology, length and depth were of particular interest and, therefore were investigated using the twin-disc tribometer by varying the number cycles from 20,000 to 120,000. Thereafter, the wear behaviour and surface/subsurface degradation were characterised. It was found that AAR Class C wheel failed mainly through wear damage, whilst R350 HT rail showed more wear resistance but poorer RCF life.
© The Authors, published by EDP Sciences, 2025
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