Journal article
Strain tensor development in a single grain in the bulk of a polycrystal under loading
First results are presented on the development of the elastic strain tensor in a single embedded grain during tensile loading of a copper sample. The technique is based on the use of focused high-energy X-rays from a synchrotron source. Measurements are performed by the rotation method, and automated indexing routines are used to group reflections belonging to a single grain.
In total, 17 reflections were monitored as a function of tensile load. At each load level three elements of the strain tensor were fitted using a singular value decomposition routine for over-determined linear systems. Sources of systematic error are discussed, and a method for extending the technique towards simultaneous measurements of ensembles of grains is outlined.
Language: | English |
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Year: | 2002 |
Pages: | 1771-1779 |
ISSN: | 18732453 and 13596454 |
Types: | Journal article |
DOI: | 10.1016/S1359-6454(02)00028-9 |
ORCIDs: | Poulsen, H.F. |