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Fatigue Initiation Lives

  • Russell Wanhill
  • Simon Barter
Chapter
Part of the SpringerBriefs in Applied Sciences and Technology book series (BRIEFSAPPLSCIENCES)

Abstract

As stated earlier, it is not easy to compare the fatigue strengths of conventionally (α + β) processed and heat-treated alloys and β processed and β heat-treated alloys. However, from the information in Sects. 4.2.1 and 4.2.2 it appears likely that the β annealed Ti-6Al-4V ELI thick plate, with its rather coarse prior β grain size (averaging about 1.2 mm) will have relatively low LCF and HCF strengths. The relatively low oxygen content of the ELI material (0.13 max. wt.% compared to 0.2 max. wt.% for normal grade Ti-6Al-4V) could also be detrimental to the HCF strength, see Starke and Lütjering (1979).

Keywords

Fatigue Crack Fatigue Life Fatigue Strength Fatigue Curve Lamellar Microstructure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© The Author(s) 2012

Authors and Affiliations

  1. 1.Aerospace Vehicles DivisionNational Aerospace Laboratory NLREmmeloordThe Netherlands
  2. 2.Air Vehicle DivisionDSTO Defence Science and Technology OrganisationMelbourneAustralia

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