Elevated temperature evaluation of fretting and metal transfer between coated titanium components

A. J. Freimanis, Albert Eliot Segall, J. C. Conway, E. J. Whitney

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

During fretting, small amplitude displacements and high normal surface loads combined with abrasive oxide particles cause surface damage that acts as initiation sites for fatigue cracks. Since these conditions are prevalent within the titanium dovetail joints of jet engines a wear mode analysis was performed on extended service jet engine disks and compressor blades. The results of the wear mode analysis indicated that titanium from the uncoated disk was transferred to the softer copper-nickel-indium coated dovetail surface of the blades. This transfer created titanium on titanium contact and eventually fretting wear. In order to simulate these conditions, a moderate displacement (125 μm), low cycle phase followed by a small displacement (25 μm), high cycle fretting phase utilizing a cylinder on flat configuration was developed. The analysis and test procedure developed during this study will ultimately aid in the selection and evaluation of a new coating capable of preventing fretting.

Original languageEnglish (US)
Pages (from-to)653-658
Number of pages6
JournalTribology Transactions
Volume43
Issue number4
DOIs
StatePublished - Jan 1 2000

Fingerprint

fretting
Titanium
titanium
Metals
jet engines
Jet engines
evaluation
Wear of materials
blades
metals
compressor blades
Temperature
cycles
Indium
temperature
abrasives
Nickel
Abrasives
Oxides
Turbomachine blades

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

Freimanis, A. J. ; Segall, Albert Eliot ; Conway, J. C. ; Whitney, E. J. / Elevated temperature evaluation of fretting and metal transfer between coated titanium components. In: Tribology Transactions. 2000 ; Vol. 43, No. 4. pp. 653-658.
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Elevated temperature evaluation of fretting and metal transfer between coated titanium components. / Freimanis, A. J.; Segall, Albert Eliot; Conway, J. C.; Whitney, E. J.

In: Tribology Transactions, Vol. 43, No. 4, 01.01.2000, p. 653-658.

Research output: Contribution to journalArticle

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