A new composite material-low-carbon Stellite alloy reinforced with nickel-coated carbon fibers

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DOIResolve DOI: http://doi.org/10.1177/0021998312469991
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TypeArticle
Journal titleJournal of Composite Materials
ISSN0021-9983
Volume48
Issue2
Pages179190; # of pages: 12
SubjectAlloying additions; Carbide formation; Corrosion property; Nickel-coated carbon fiber; Stellite alloy; Strengthening agents; Tribological properties; Wear rates; Carbides; Carbon fibers; Corrosion; Corrosion resistance; Friction; Hardness; Hot isostatic pressing; Metallic matrix composites; Nickel coatings; Powder metallurgy; Sintering; Superalloys; Wear of materials; Stellite
AbstractA group of nickel-coated carbon fiber reinforced Stellite 25 composites are produced using the hot isostatic pressing technique. The focus of this research is on obviating the problems related to the presence of carbides in Stellite alloys by substituting carbides as the main strengthening agent in Stellite alloys with nickel-coated carbon fibers. The principal reason for selecting Stellite 25 is because of its low carbon content and thereby relatively carbide free microstructure. The nickel coating is intended to eliminate any chance of carbide formation due to the possible reaction between carbon fibers and the matrix alloying additions. The tribomechanical and corrosion properties of the composites are characterized. The results show that the composites exhibit better corrosion resistance than medium-carbon Stellite alloys. The addition of carbon fibers into Stellite 25 improves its hardness and tribological properties. The wear rates of the composites are lower than that of medium-carbon Stellite alloys and comparable with that of high-carbon Stellites. © The Author(s) 2012.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); Aerospace (AERO-AERO)
Peer reviewedYes
NPARC number21270834
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Record identifier72141102-5bfb-4bf0-be1f-7723defea6c4
Record created2014-02-17
Record modified2016-05-09
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