Measurement and modelling of the residual stresses in autogenous and narrow gap laser welded AISI grade 316L stainless steel plates

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dc.contributor.authorElmesalamy, A. S.
dc.contributor.authorAbdolvand, H.
dc.contributor.authorWalsh, J. N.
dc.contributor.authorFrancis, J. A.
dc.contributor.authorSuder, Wojciech
dc.contributor.authorWilliams, Stewart W.
dc.contributor.authorLi, L.
dc.date.accessioned2016-10-18T11:12:22Z
dc.date.available2016-10-18T11:12:22Z
dc.date.issued2016-09-22
dc.description.abstractThick-section austenitic stainless steels have widespread industrial applications, where stress-corrosion cracking is often of major concern. Problems tend to arise in the vicinity of welds, where substantial residual stresses often reside. This paper describes an investigation into the residual stresses in autogenous high power laser welds and narrow gap laser welds (NGLW) in 10 mm thick AISI grade 316L steel plates, using both neutron diffraction and the contour method. The influences of laser power, welding speed and the time interval between weld passes on residual stress were analysed. For the NGLW process, finite element modelling was employed to understand the influence of thermal history on residual stress. The results for the NGLW technique show that the laser power has a significant effect on the peak value of residual stress, while the welding speed has a more significant influence on the width of the region sustaining tensile stresses.en_UK
dc.identifier.citationA.S. Elmesalamy, H. Abdolvand, J.N. Walsh, J.A. Francis, W. Suder, S. Williams, L. Li, Measurement and modelling of the residual stresses in autogenous and narrow gap laser welded AISI grade 316L stainless steel plates, International Journal of Pressure Vessels and Piping, Volume 147, November 2016, pp.64-78en_UK
dc.identifier.cris15365128
dc.identifier.issn0308-0161
dc.identifier.urihttp://dx.doi.org/10.1016/j.ijpvp.2016.09.007
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/10771
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 3.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/
dc.subjectComputational weld mechanicsen_UK
dc.subjectMulti-pass laser weldingen_UK
dc.subjectNarrow gapen_UK
dc.subjectWeldingen_UK
dc.subjectNumerical simulationen_UK
dc.subjectStructural integrityen_UK
dc.subjectWeld integrityen_UK
dc.titleMeasurement and modelling of the residual stresses in autogenous and narrow gap laser welded AISI grade 316L stainless steel platesen_UK
dc.typeArticleen_UK

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