Residual stress evaluation in multi-beads steel weldments using neutron difraction

A. Paradowska, J. W.H. Price, R. Ibrahim, T. R. Finlayson, M. Ripley, R. Blevins

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Residual stress remains the single largest unknown in industrial damage situations. In this research the neutron diffraction technique was used to investigate and compare the residual stress characteristics in a several weld arrangements. Single and multi bead weld on a plate of low-carbon steel using the flux-cored arc welding (FCAW) process are presented. This research has focused on: 1) restraint during welding, 2) the effects at the start and end of the weld for a single bead, and 3) the effect of increasing the number of passes on the residual stress behaviour. The number and resolution of the measurements carried out in this work achieve a new level of detail and reveal significant features of the residual stress pattern in multi-bead welding. The intention is to provide key data for the validation of design, fitness-for-purpose methodologies and finite-element tools.

Original languageEnglish
Pages (from-to)40-51
Number of pages12
JournalWelding Research Abroad
Issue number12
Publication statusPublished - 1 Dec 2005


  • Neutron Diffraction
  • Residual Strain
  • Residual Stress
  • Welding

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