Evaluation and qualification of diffusion braze repair techniques for superalloy gas turbine components

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DOIResolve DOI: http://doi.org/10.4224/21271773
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TypeTechnical Report
Series titleLaboratory Technical Report; no. LTR-ST-1839
ConferencePresented at the Canadian Gas Association Symposium on Industrial Application of Gas Turbines, Oct 16-18, 1991, Banff, Alberta
Physical description20 p.
AbstractThis paper reports on the development of Diffusion Braze Repair (DBR) techniques for service damaged turbine engine nozzle guide vanes (NGVs), made from cobalt and nickel-base superalloys. A description of the work undertaken by Vac-Aero in collaboration with the Institute for Aerospace Research of the National Research Council on qualification of the repair techniques for aero engine applications is also provided. This qualification work included bench testing of material test coupons as well as accelerated endurance testing of repaired aero engine parts under simulated service conditions in a burner rig. The results of stress rupture and burner rig tests indicate that Diffusion Braze Repair is an attractive and viable alternative to component replacement.
Publication date
PublisherNational Research Council Canada
AffiliationNational Research Council Canada; NRC Institute for Aerospace Research
Peer reviewedNo
NPARC number21271773
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Record identifier412c98eb-2f2f-4c1d-b966-89d990c6de08
Record created2014-04-11
Record modified2016-10-03
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