A microstructural study of rolling contact fatigue in rails
- Author
- Jun Wu, Roumen Petrov (UGent) , Meysam Naeimi, Zili Li and Jilt Sietsma (UGent)
- Organization
- Abstract
- In this paper, microstructural features due to rolling contact fatigue in rails were studied by means of microhardness, optical microscope, and high resolution electron backscatter diffraction (EBSD). Significant strain accumulation was found not only in the rail surface but also near MnS inclusions at ~680μm beneath the surface. It is shown that the extent of straining at the inclusion is comparable to the one in the rail surface. As a consequence, the MnS inclusions might alter the propagation route of rolling contact fatigue (RCF) cracks. This imposes very strong requirements for metallurgy quality control.
- Keywords
- KAM misorientation., crack propagation, strain concentration, MnS inclusion, RCF, EBSD
Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-7257382
- MLA
- Wu, Jun, et al. “A Microstructural Study of Rolling Contact Fatigue in Rails.” Second International Conference on Railway Technology : Research, Development and Maintenance, Civil-Comp Press, 2014, doi:10.4203/ccp.104.118.
- APA
- Wu, J., Petrov, R., Naeimi, M., Li, Z., & Sietsma, J. (2014). A microstructural study of rolling contact fatigue in rails. Second International Conference on Railway Technology : Research, Development and Maintenance. Presented at the Second International Conference on Railway Technology : Research, Development and Maintenance, Ajaccio france. https://doi.org/10.4203/ccp.104.118
- Chicago author-date
- Wu, Jun, Roumen Petrov, Meysam Naeimi, Zili Li, and Jilt Sietsma. 2014. “A Microstructural Study of Rolling Contact Fatigue in Rails.” In Second International Conference on Railway Technology : Research, Development and Maintenance. Stirlingshire, UK: Civil-Comp Press. https://doi.org/10.4203/ccp.104.118.
- Chicago author-date (all authors)
- Wu, Jun, Roumen Petrov, Meysam Naeimi, Zili Li, and Jilt Sietsma. 2014. “A Microstructural Study of Rolling Contact Fatigue in Rails.” In Second International Conference on Railway Technology : Research, Development and Maintenance. Stirlingshire, UK: Civil-Comp Press. doi:10.4203/ccp.104.118.
- Vancouver
- 1.Wu J, Petrov R, Naeimi M, Li Z, Sietsma J. A microstructural study of rolling contact fatigue in rails. In: Second International Conference on Railway Technology : Research, Development and Maintenance. Stirlingshire, UK: Civil-Comp Press; 2014.
- IEEE
- [1]J. Wu, R. Petrov, M. Naeimi, Z. Li, and J. Sietsma, “A microstructural study of rolling contact fatigue in rails,” in Second International Conference on Railway Technology : Research, Development and Maintenance, Ajaccio france, 2014.
@inproceedings{7257382,
abstract = {{In this paper, microstructural features due to rolling contact fatigue in rails were studied by means of microhardness, optical microscope, and high resolution electron backscatter diffraction (EBSD). Significant strain accumulation was found not only in the rail surface but also near MnS inclusions at ~680μm beneath the surface. It is shown that the extent of straining at the inclusion is comparable to the one in the rail surface. As a consequence, the MnS inclusions might alter the propagation route of rolling contact fatigue (RCF) cracks. This imposes very strong requirements for metallurgy quality control.}},
articleno = {{P118}},
author = {{Wu, Jun and Petrov, Roumen and Naeimi, Meysam and Li, Zili and Sietsma, Jilt}},
booktitle = {{Second International Conference on Railway Technology : Research, Development and Maintenance}},
keywords = {{KAM misorientation.,crack propagation,strain concentration,MnS inclusion,RCF,EBSD}},
language = {{eng}},
location = {{Ajaccio france}},
publisher = {{Civil-Comp Press}},
title = {{A microstructural study of rolling contact fatigue in rails}},
url = {{http://doi.org/10.4203/ccp.104.118}},
year = {{2014}},
}
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