Microstructure and hardness of fiber laser deposited Inconel 718 using filler wire

Download
  1. Get@NRC: Microstructure and hardness of fiber laser deposited Inconel 718 using filler wire (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1007/s00170-013-5171-y
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Journal titleInternational Journal of Advanced Manufacturing Technology
ISSN0268-3768
Pages113; # of pages: 13
AbstractA continuous wave 5 kW fiber laser welding system was used to deposit INCONEL® alloy 718 (IN718) layers in conduction mode by applying filler wire with a composition similar to the parent metal, which was extracted directly from a scrapped, service-exposed IN718 aerospace component. The quality of the deposits was characterized in both the as-deposited and fully heat-treated conditions in terms of the macrostructure, defects, microstructure, and hardness. Integral deposits with no visible porosity were obtained using the fiber laser deposition technique. In the as-deposited clad zone, weld metal liquation cracking led to the presence of minor microcracks in the lower layer beads near the layer interface. The crack healing behavior observed after post-clad heat treatment of the IN718 deposits supports the marked potential of using the laser deposition technique by filler wire addition to manufacture and repair/remanufacture superalloy components for aerospace applications. © 2013 Her Majesty the Queen in Right of Canada as represented by: National Research Council Canada.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Aerospace
Peer reviewedYes
NPARC number21269845
Export citationExport as RIS
Report a correctionReport a correction
Record identifier0239ee87-07dd-4a93-9523-84b03132045b
Record created2013-12-13
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)