Low Delta-K Faceted Crack Growth in Titanium Alloys (Postprint)

Abstract

This communication describes the results of spectrum fatigue loading experiments conducted on cast+HIT Ti-6Al-4V. the purpose of the experiments is to elucidate the nature of the faceted crack growth that occurs at low values of delta-K in titanium alloys and also other alloys. The results clearly show that thousands of load cycles are required for the crack to grow across a single facet. The confusing terminology relating to low delta-K fatigue fracture topography is reviewed and the term "low delta-K faceted growth" is proposed as a descriptor.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2007
Accession Number
ADA503103

Entities

People

  • A. Bhattacharjee
  • A. H. Rosenberger
  • Adam L. Pilchak
  • J. C. Williams

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Alloys
  • Chemical Compounds
  • Crack Tips
  • Diffraction
  • Failure Mode And Effect Analysis
  • Materials
  • Materials Science
  • Metals
  • Military Research
  • Stresses
  • Titanium
  • Titanium Alloys
  • Topography
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Theoretical Analysis.