Measurement of residual stresses in linear friction welded in-service inconel 718 superalloy

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DOIResolve DOI: http://doi.org/10.4028/www.scientific.net/MSF.879.1800
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TypeArticle
Proceedings titleMaterials Science Forum
ConferenceThermec 2016, International Conference on Processing and manufacturing of Advanced Materials, Processing, Fabrication, Properties, Applications, May 29-June3, 2016, Graz, Austria
ISSN1662-9752
Volume879
Pages18001806
AbstractMeasurement of residual strains by neutron diffraction of linear friction welded Inconel® 718 (IN 718) superalloy acquired from a mid-service aero-engine disk was undertaken in this study. Residual strain and stress throughout the various weld regions including the heat affected zone (HAZ), thermomechanical affected zone (TMAZ) and dynamically recrystallized zone (DRX) were characterized. The residual stresses were observed to increase from the base material to the weld interface, with a peak stress at the weld interface in all orthogonal directions. The trends for residual stress across the weld are in agreement with other work published in literature for solid state welding of aerospace alloys, where high residual stresses were commonly reported at the weld interface.
Publication date
LanguageEnglish
AffiliationAerospace; National Research Council Canada
Peer reviewedYes
NPARC number23001167
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Record identifier44324610-7ee2-4c7e-9e8e-3a0580179be0
Record created2016-12-21
Record modified2016-12-21
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