In situ assessment of lattice strain in an Al-Li alloy

A. J. Beaudoin, M. Obstalecki, W. Tayon, M. Hernquist, R. Mudrock, P. Kenesei, U. Lienert

Research output: Contribution to journalArticlepeer-review


The lattice strains of individual grains are measured in an Al-Li alloy, AA 2195, using high-energy X-ray diffraction at a synchrotron source. The diffraction of individual grains in this highly textured production alloy was isolated through use of a depth-defining aperture. It is shown that hydrostatic stress, and in turn the stress triaxiality, can vary significantly from grain to grain.

Original languageEnglish (US)
Pages (from-to)3456-3464
Number of pages9
JournalActa Materialia
Issue number9
StatePublished - May 2013


  • Aluminum alloy
  • In situ tension test
  • Keywords
  • Material properties
  • Synchrotron diffraction

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys


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