The out-of-phase thermomechanical fatigue behavior of Ultra SCS-6/Ti-24Al-17Nb-xMo (at.%) metal matrix composites

J. P. Quast, C. J. Boehlert

Research output: Contribution to journalArticle

  • 3 Citations

Abstract

The out-of-phase thermomechanical fatigue behavior of Ultra SCS-6/Ti-24Al-17Nb-2.3Mo (at.%), Ultra SCS-6/Ti-24Al-17Nb-1.1Mo (at.%), and Ultra SCS-6/Ti-24Al-17Nb-0.6Mo (at.%) continuously-reinforced metal matrix composites (MMCs) was investigated in order to understand the effect of Mo on the microstructure and fatigue behavior of titanium-alloy-matrix composites. From the recorded stress versus cycle behavior, two failure regimes were noted. For the highest stresses examined, fatigue-dominated failure occurred. For the lowest stresses examined, a creep-dominated failure occurred. The Ultra SCS-6/Ti-24Al-17Nb-1.1Mo MMC exhibited the shortest fatigue lives for all the applied stress levels examined. The Ultra SCS-6/Ti-24Al-17Nb-2.3Mo MMC exhibited the longest fatigue lives for the lowest applied stress levels, and the Ultra SCS-6/Ti-24Al-17Nb-0.66Mo MMC exhibited the longest fatigue lives for most of the higher applied stress levels.

LanguageEnglish (US)
Pages610-620
Number of pages11
JournalInternational Journal of Fatigue
Volume32
Issue number3
DOIs
StatePublished - Mar 2010

Profile

Metal Matrix Composites
Fatigue
Metals
Fatigue of materials
Composite materials
Fatigue Life
Lowest
Titanium Alloy
Creep
Titanium alloys
Microstructure
Composite
Cycle

Keywords

  • Composites
  • Intermetallics
  • Microstructures
  • Thermomechanical fatigue
  • Titanium alloys

ASJC Scopus subject areas

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

Cite this

The out-of-phase thermomechanical fatigue behavior of Ultra SCS-6/Ti-24Al-17Nb-xMo (at.%) metal matrix composites. / Quast, J. P.; Boehlert, C. J.

In: International Journal of Fatigue, Vol. 32, No. 3, 03.2010, p. 610-620.

Research output: Contribution to journalArticle

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