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Science 23 March 2001:
Vol. 291. no. 5512, pp. 2392 - 2394
DOI: 10.1126/science.1057956
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Reports

In Situ Measurement of Grain Rotation During Deformation of Polycrystals

L. Margulies,12 G. Winther,1 H. F. Poulsen1*

Texture evolution governs many of the physical, chemical, and mechanical properties of polycrystalline materials, but texture models have only been tested on the macroscopic level, which makes it hard to distinguish between approaches that are conceptually very different. Here, we present a universal method for providing data on the underlying structural dynamics at the grain and subgrain level. The method is based on diffraction with focused hard x-rays. First results relate to the tensile deformation of pure aluminum. Experimental grain rotations are inconsistent with the classical Taylor and Sachs models.

1 Materials Research Department, Risø National Laboratory, 4000 Roskilde, Denmark.
2 European Synchrotron Radiation Facility, BP 220, 38043 Grenoble, France.
*   To whom correspondence should be addressed. E-mail: henning.friis.poulsen{at}risoe.dk

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Formation and subdivision of deformation structures during plastic deformation..
B. Jakobsen, H. F. Poulsen, U. Lienert, J. Almer, S. D. Shastri, H. O. Sorensen, C. Gundlach, and W. Pantleon (2006)
Science 312, 889-892
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Science. ISSN 0036-8075 (print), 1095-9203 (online)