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Laser-additive repair of cast Ni–Al–bronze components

From National Research Council Canada

DOIResolve DOI: https://doi.org/10.1007/978-3-030-05861-6_19
AuthorSearch for: 1; Search for: 1; Search for: 1; Search for:
Affiliation
  1. National Research Council of Canada. Aerospace
FormatText, Article
ConferenceTMS 2019 Annual Meeting & Exhibition, March 10-14, 2019, San Antonio, TX, USA
Subjectadditive manufacturing; powder feeding; laser deposition; Ni–Al–bronze; microstructure; hardness
Abstract
To emulate the refurbishment of service-damaged cast nickel aluminum bronze (NAB) components, a laser-additive repair process using NAB powder feed was developed. Process parameters were first optimized using Taguchi experimental design based on the lowest dilution ratio criterion. The dilution ratio was obtained from single weld beads deposited on flat substrates. Using the optimum process window developed on the flat substrates, the process parameters were further modified to deposit multiple weld beads in a grooved substrate, which was used to emulate remanufacturing of a service-damaged surface condition. Using the optimum laser-additive repair process developed, sound deposits with no cracks but some micropores at acceptable levels for the application, were successfully manufactured. The microstructure and microindentation hardness of the deposited specimen were evaluated in the as-deposited condition.
Publication date
PublisherSpringer
In
  • TMS 2019 148th Annual Meeting & Exhibition Supplemental Proceedings: 205–216.
Series
  • The Minerals, Metals & Materials Series, no. 44.
LanguageEnglish
Peer reviewedYes
NRC publication
This is a non-NRC publication

"Non-NRC publications" are publications authored by NRC employees prior to their employment by NRC.

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Record identifierfafe98b2-9c7c-46fd-bfd5-1e0217ab1928
Record created2019-05-30
Record modified2020-03-16
Date modified: