Solid particle erosion behaviors of carbon-fiber epoxy composite and pure titanium

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DOIResolve DOI: http://doi.org/10.1007/s11665-015-1848-8
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TypeArticle
Journal titleJournal of Materials Engineering and Performance
ISSN1059-9495
Volume25
Issue1
Pages290296; # of pages: 7
SubjectCarbon fibers; Coatings; Erosion; Fibers; Shielding; Titanium; Turbomachine blades; Carbon fiber composite; Carbon fiber epoxy composites; Coating process; Composite blades; Erosion behavior; High specific strength; Impingement angle; Solid particle erosion; Composite coatings
AbstractRotor blades of Bell CH-146 Griffon helicopter experience excessive solid particle erosion at low altitudes in desert environment. The rotor blade is made of an advanced light-weight composite which, however, has a low resistance to solid particle erosion. Coatings have been developed and applied to protect the composite blade. However, due to the influence of coating process on composite material, the compatibility between coating and composite base, and the challenges of repairing damaged coatings as well as the inconsistency between the old and new coatings, replaceable thin metal shielding is an alternative approach; and titanium, due to its high-specific strength and better formability, is an ideal candidate. This work investigates solid particle erosion behaviors of carbon-fiber epoxy composite and titanium in order to assess the feasibility of titanium as a viable candidate for erosion shielding. Experiment results showed that carbon-fiber epoxy composite showed a brittle erosion behavior, whereas titanium showed a ductile erosion mode. The erosion rate on composite was 1.5 times of that on titanium at impingement angle 15° and increased to 5 times at impact angle 90°.
Publication date
PublisherSpringer International Publishing
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Aerospace
Peer reviewedYes
NPARC number21277460
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Record identifier65e07a69-532f-4ad0-a924-37f6cd756c81
Record created2016-03-09
Record modified2016-05-09
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