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The tensile deformation of unidirectionally solidified Al-Al3Ni and Al-Al2Cu eutectics

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Abstract

Transmission electron microscopy has been used to investigate the dislocation structures produced in single crystals of Al-Al3Ni and Al-Al2Cu eutectics deformed in tension. Matrix dislocation densities in the as-grown eutectics are very high, owing to differential thermal contraction effects. The subsequent deformation behaviour of the eutectic crystals is shown to be controlled by the initial high dislocation density, and a constraint effect due to the presence of closely spaced fibres or lamellae.

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Author notes

  1. B. Cantor

    Present address: Applied Sciences Laboratory, University of Sussex, Falmer, Brighton, Sussex, UK

  2. G. A. Chadwick

    Present address: Department of Mining and Metallurgical Engineering, University of Queensland, St. Lucia, Brisbane, Australia

Authors and Affiliations

  1. Department of Metallurgy and Materials Science, University of Cambridge, UK

    B. Cantor & G. A. Chadwick

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  1. B. Cantor
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  2. G. A. Chadwick
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Cantor, B., Chadwick, G.A. The tensile deformation of unidirectionally solidified Al-Al3Ni and Al-Al2Cu eutectics. J Mater Sci 10, 578–588 (1975). https://doi.org/10.1007/BF00566564

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  • DOI: https://doi.org/10.1007/BF00566564

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