Fretting fatigue of laser shock peened Ti-6Al-4V

S. Srinivasan, D. B. Garcia, M. C. Gean, H. Murthy, T. N. Farris

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

The objective of this paper is to examine fretting fatigue of laser shock peened (LSP) titanium to quantify the influence of LSP on fretting fatigue life. Contact conditions such as loads and pad geometry are chosen to generate fretting fatigue stresses similar to those occurring in blade/disk contacts in gas turbine engines. LSP treated specimens attained 5-, 10- and 25-fold increase in lives compared to untreated specimens. Metallography of the contact area and fractographic analysis of worn pads detail the fretting behavior of LSP treated specimens.

Original languageEnglish (US)
Pages (from-to)1324-1329
Number of pages6
JournalTribology International
Volume42
Issue number9
DOIs
StatePublished - Sep 2009
Externally publishedYes

All Science Journal Classification (ASJC) codes

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

Keywords

  • Fretting fatigue
  • Laser shock peening
  • Ti-6Al-4V

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