Abstract
DEFORMATION experiments have been carried out with aluminium single crystals by means of a specially constructed apparatus (Bausch apparatus1), which approximates a pure shear (the applied stress being parallel to the glide plane (111) and to the glide direction [110] ). Fig. 1 is a reproduction of a photograph of a sheared crystal. The experiments have shown that even such a deformation process causes an asterism of the Laue interference spots, pointing to the presence of locally curved lattice regions, the direction of curvature being perpendicular to the direction of gliding.
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References
Bausch, K., Z. Phys., 93, 479 (1935).
Kochendörfer, A., "Plastische Eigenschafben von Kristallen und metallischen Werkstoffen" (Berlin, 1941), 11 et seq.
Taylor, G. I., Proc. Roy. Soc., A, 116, 39 (1927).
Karnop, R., and Sachs, G., Z. Phys., 41, 116 (1927).
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BURGERS, W., LEBBINK, F. Lattice Distortions and Shear in Aluminium Single Crystals. Nature 157, 47 (1946). https://doi.org/10.1038/157047a0
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DOI: https://doi.org/10.1038/157047a0
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