Enhanced resistance to weld cracking by strain-induced rapid solidification during linear friction welding

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DOIResolve DOI: http://doi.org/10.1080/09500839.2010.541164
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TypeArticle
Journal titlePhilosophical Magazine Letters
ISSN0950-0839
Volume91
Issue2
Pages140149; # of pages: 10
SubjectBoundary liquation; Compressive strain; Crack free; Gleeble; Linear friction welding; Liquid stability; Microstructural analysis; Nickel- based superalloys; Resistance to cracking; Solid-state joining; Thermomechanical simulation; weld cracking; Friction welding; Grain boundaries; Joining; Nickel alloys; Rapid solidification; Tribology
AbstractA study of weld cracking resistance during linear friction joining of a difficult-to-weld nickel-based superalloy was performed by Gleeble thermomechanical simulation coupled with an extensive microstructural analysis. It was found that crack-free welds produced by the supposedly solid-state joining technique of linear friction welding is not due to preclusion of grain boundary liquation as has been commonly assumed and reported. Instead, resistance to cracking can be related to a reduction in liquid stability by the imposed compressive strain during welding. © 2011 Taylor & Francis.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Aerospace Research
Peer reviewedYes
NPARC number21271060
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Record identifierffd9cc73-65e6-4ba8-93e1-4129928eaf64
Record created2014-03-24
Record modified2016-05-09
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