ISIS Neutron and Muon Source Data Journal

Fatigue crack propagation effect on the residual stress redistribution of laser cladded rail

Abstract: To improve the railway networks, track components with greater durability are essential. To this end, we clad a layer of premium material on railhead to reduce wear and the likelihood of fatigue in an effective manner. However, the resulting residual stress in the clad and substrate and changes in their microstructure can be detrimental to their integrity. We propose to measure their residual stress to validate our finite element model for both high and low durability specimens. We will sequentially fatigue the specimens and monitor their residual stress at critical points to study shakedown and possible cracking. A drop in residual stress is a surrogate for crack initiation; early detection of cracks allows us to study the crack initiation site and its surrounding microstructure. This will help optimise the cladding parameters to achieve greater clad durability.

Principal Investigator: Professor Martyn Pavier
Experimenter: Dr Mahmoud Mostafavi
Experimenter: Dr Aditya Narayanan
Experimenter: Dr Matthew Peel
Experimenter: Dr Saurabh Kabra
Experimenter: Dr Kiranmayi Abburi Venkata
Experimenter: Mr Nader Zentuti

DOI: 10.5286/ISIS.E.RB1620211

ISIS Experiment Number: RB1620211

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Professor Martyn Pavier et al; (2016): Fatigue crack propagation effect on the residual stress redistribution of laser cladded rail, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1620211

Data is released under the CC-BY-4.0 license.