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

被引：32
作者：
Beaudoin, A. J. [1 ]
Obstalecki, M. [2 ]
Tayon, W. [3 ]
Hemquist, M. [4 ]
Mudrock, R. [5 ]
Kenesei, P. [6 ]
Lienert, U. [7 ]
机构：
[1] Univ Illinois, Urbana, IL 61801 USA
[2] Cornell Univ Ithaca, Ithaca, NY USA
[3] NASA, Langley Res Ctr, Hampton, VA 23665 USA
[4] Northrop Grumman, Azusa, CA USA
[5] Honeywell, Des Plaines, IL USA
[6] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA
[7] Deutsch Elektronen Synchrotron DESY, Hamburg, Germany
来源：
ACTA MATERIALIA | 2013年 / 61卷 / 09期
关键词：
Synchrotron diffraction; In situ tension test; Material properties; Aluminum alloy; FRACTURE; ANISOTROPY; DEFORMATION; TOUGHNESS; BEHAVIOR; FATIGUE; BULK;
D O I：
10.1016/j.actamat.2013.02.037
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
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收藏
页码：3456 / 3464
页数：9
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