Modelling the influence of laser drilled recast layer thickness on the fatigue performance of CMSX-4

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dc.contributor.author Morar, Nicolau
dc.contributor.author Roy, Rajkumar
dc.contributor.author Gray, Simon
dc.contributor.author Nicholls, John
dc.contributor.author Mehnen, Jörn
dc.date.accessioned 2019-01-31T18:39:22Z
dc.date.available 2019-01-31T18:39:22Z
dc.date.issued 2018-11-02
dc.identifier.citation Nicolau Iralal Morar, Rajkumar Roy, Simon Gray, et al., Modelling the influence of laser drilled recast layer thickness on the fatigue performance of CMSX-4. Procedia Manufacturing, Volume 16, 2018, Pages 67-74 en_UK
dc.identifier.issn 2351-9789
dc.identifier.uri https://doi.org/10.1016/j.promfg.2018.10.173
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/13870
dc.description.abstract This paper introduces a novel approach to fatigue life prediction modelling considering the laser drilling effect on film cooling holes of turbine vanes. The methodology proposed is based on a stress-life model such as the Basquin law and the introduction of manufacturing damage effect. The proposed empirical model gives a unique versatility compared to other stress-life models by considering surface damage such as the recast layer produced by the laser drilling process. The proposed empirical model has been thoroughly tested and validated using existing fatigue data. The statistical analysis shows that the proposed model is adequate for estimating the fatigue life of laser drilled specimens considering the recast layer thicknesses effect. The proposed model also can estimate the life of untested specimens even when only a small sample of fatigue data is available, thereby reducing the required testing data. en_UK
dc.language.iso en en_UK
dc.publisher Elsevier en_UK
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject Fatigue life en_UK
dc.subject surface defects en_UK
dc.subject laser drilling en_UK
dc.subject recast layer en_UK
dc.title Modelling the influence of laser drilled recast layer thickness on the fatigue performance of CMSX-4 en_UK
dc.type Article en_UK


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