Surface preparation for residual stress measurement of an accelerated corrosion tested welded marine steel

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Abstract

Residual stress measurement is often required for the assessment of structural integrity of components. Measurement of residual stress in corrosion tested specimens is challenging owing to the difficulty of accessing the surface because of the rust layer. This study explored the potential methods for the surface preparation of an ultrasonically-peened and accelerated corrosion tested DH36 marine steel fillet welded specimen to ease the way for subsequent residual stress measurement using neutron diffraction and the contour method. We find that hydroblasting introduces compressive residual stress at the surface that will alter the surface stress to be measured.
Original languageEnglish
Pages (from-to)357–360
JournalCorrosion Science
Volume91
Early online date11 Nov 2014
DOIs
Publication statusPublished - 2015

Bibliographical note

NOTICE: this is the author’s version of a work that was accepted for publication in Corrosion Science. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Corrosion Science [Vol 91, (2015)] DOI: 10.1016/j.corsci.2014.11.008.

Keywords

  • rust
  • x-ray diffraction
  • steel

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