Chard, Alison Elizabeth (2012). Deformation of inclusions in rail steel due to rolling contact. University of Birmingham. M.Res.
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Chard_12_MRes.pdf
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Abstract
Rolling contact fatigue (RCF) is a significant problem in the rail industry as it causes rapid and difficult to detect cracks. Inclusions present in the material can have an adverse effect on the RCF life of rails. This study aims to discover the impact of the loading of rail steel in service on the inclusions present within the material. The work pays particular attention to the elongation and flattening of MnS inclusions and their contribution toward rail failure using a combination of micro-hardness measurements, inclusion analysis and focused ion beam analysis. The results indicate that the inclusions present in the material are considerably elongated by the loading of the rail in service and this may contribute to spontaneous cracking or assist in crack propagation.
| Type of Work: | Thesis (Masters by Research > M.Res.) | ||||||
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| Award Type: | Masters by Research > M.Res. | ||||||
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| College/Faculty: | Colleges (2008 onwards) > College of Engineering & Physical Sciences | ||||||
| School or Department: | School of Metallurgy and Materials | ||||||
| Funders: | Engineering and Physical Sciences Research Council | ||||||
| Subjects: | T Technology > TN Mining engineering. Metallurgy | ||||||
| URI: | http://etheses.bham.ac.uk/id/eprint/3295 |
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