Effect of microstructure on fretting fatigue and sliding wear of highly workable titanium alloy, Ti-4.5Al-3V-2Mo-2Fe

J. Takeda, M. Niinomi, T. Akahori, Gunawarman

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

The effects of frictional wear characteristics and microstructural factors such as volume fraction and diameter of primary α phase on fretting fatigue strength of Ti-4.5Al-3V-2Mo-2Fe annealed at various temperatures were investigated in this study. The fretting fatigue life of Ti-4.5Al-3V-2Mo-2Fe is hardly affected by the volume fraction and diameter of the primary α phase in the low cycle fretting fatigue life region. The fretting fatigue limit of Ti-4.5Al-3V-2Mo-2Fe tends to increase with decrease in the volume fraction and average diameter of primary α phase. However, when volume fraction and average diameter of primary α phase are below certain values, the fretting fatigue limit is lowered by coarsening of the acicular α phase, which precipitates in the β phase region. The weight of wear debris that is swept out from the specimen surface in frictional wear test of Ti-4.5Al-3V-2Mo-2Fe tends to increase with decrease in hardness. The fretting fatigue life of Ti-4.5Al-3V-2Mo-2Fe tends to decrease with increase in the weight of wear debris that is swept out from the specimen surface in fretting fatigue test and increase in the depth of the crack growth zone caused by contact pressure.

Original languageEnglish
Pages (from-to)1003-1015
Number of pages13
JournalInternational Journal of Fatigue
Volume26
Issue number9
DOIs
Publication statusPublished - 2004 Sep

Keywords

  • Contact pressure
  • Fretting fatigue
  • Frictional wear
  • Microstructure
  • Titanium alloy

ASJC Scopus subject areas

  • Modelling and Simulation
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Fingerprint Dive into the research topics of 'Effect of microstructure on fretting fatigue and sliding wear of highly workable titanium alloy, Ti-4.5Al-3V-2Mo-2Fe'. Together they form a unique fingerprint.

Cite this