Title: Full Depth-Resolved Strain Mapping of a Three-Pass Slot Weld Specimen in Austenitic Stainless Steel Using the Spiral Slit Technique
Authors: MARTINS ReneOHMS CarstenDECROOS Koenraad
Citation: MATERIALS SCIENCE FORUM vol. 652 p. 74-79
Publication Year: 2010
JRC N°: JRC55134
ISSN: 0255-5476
URI: www.scientific.net
DOI: 10.4028/www.scientific.net/MSF.652.74
Type: Articles in periodicals and books
Abstract: An 18 mm thick three-pass slot weld specimen in austenitic stainless steel, manufactured for the purpose of benchmarking Finite Element weld residual stress simulation codes, is currently undergoing extensive non-destructive characterization within a research network. First results from the non-destructive full three dimensional spatially resolved macro-strain mapping in this specimen are presented here. Focussed high-energy synchrotron radiation together with the spiral slit technique was used to obtain depth-resolved information about the variation of lattice parameters. The results show a strong concentration of tensile strain, transverse to the weld at mid-depth of the weld. The maximum longitudinal strains were observed beneath the weld. Furthermore significant weld start- and stop-effects were observed.
JRC Directorate:Energy, Transport and Climate

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