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Wear of seal materials used in aircraft propulsion systemsA review of various types of seal locations in a gas turbine engine and the significance of wear for each type are presented. Material selection guidelines and the PV (contact pressure times sliding velocity) criteria for seal materials are discussed, and examples of wear mechanisms in positive contact seals are given. It is suggested that improved wear, erosion, and oxidation resistant materials will be required for improved seal durability; finally, a correlation is proposed between wear characteristics and a factor that includes material strength, ductility, specific heat and hot-working temperature to attain low porosity metallic gas path seal materials.
Document ID
19800043840
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bill, R. C.
(U.S. Army, Army Aviation Research and Development Center Cleveland, Ohio, United States)
Ludwig, L. P.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 10, 2013
Publication Date
March 1, 1980
Subject Category
Mechanical Engineering
Accession Number
80A28010
Distribution Limits
Public
Copyright
Other

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