Stress relaxation in linear friction welds of fine-grained Al alloy during in situ stretch and heat treatment

DOI

Welding processes are usually associated with significant thermal gradients and may generate high tensile residual stresses in and near the bond line. These stresses reduce the material resistance to fatigue crack initiation and propagation. In order to improve the strength of weldments, heat treatment is used at the final stage of manufacturing. Heat treatment modifies the material microstructure and properties through diffusion and creep/relaxation. Stress-relieving heat treatments are used for welded structures to improve ductility, relieve internal stresses, refine the microstructure and improve cold working properties. The aim of this study is to investigate the residual stress relief in LFW joints during heat treatment in the presence of tensile load in situ on the neutron diffraction instrument.

Identifier
DOI https://doi.org/10.5286/ISIS.E.24077549
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/24077549
Provenance
Creator Professor Alexander Korsunsky; Dr Terry Jun
Publisher ISIS Neutron and Muon Source
Publication Year 2012
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Photon- and Neutron Geosciences
Temporal Coverage Begin 2009-10-01T10:22:10Z
Temporal Coverage End 2009-10-05T00:57:54Z