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In Situ Assessment of Lattice in an Al-Li AlloyThe 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.
Document ID
20140006030
Acquisition Source
Langley Research Center
Document Type
Reprint (Version printed in journal)
Authors
Beaudoin, A. J.
(Illinois Univ. Urbana-Champaign, IL, United States)
Obstalecki, M.
(Cornell Univ. Ithaca, NY, United States)
Tayon, W.
(NASA Langley Research Center Hampton, VA, United States)
Hernquist, M.
(Northrop Grumman Systems Corp. Azusa, CA, United States)
Mudrock, R.
(Honeywell, Inc. Des Plains, IL United States)
Kenesei, P.
(Argonne National Lab. IL, United States)
Lienert, U.
(Deutsches Elektronen-Synchrotron Hamburg, Germany)
Date Acquired
May 22, 2014
Publication Date
May 1, 2013
Publication Information
Publication: Acta Materialia
Volume: 61
Issue: 9
Subject Category
Metals And Metallic Materials
Report/Patent Number
NF1676L-16717
Funding Number(s)
CONTRACT_GRANT: DOE DEFG36-05GO15049
CONTRACT_GRANT: NNX09AN21G
WBS: WBS 736466.01.08.07.06.01
Distribution Limits
Public
Copyright
Other

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