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The structure of the γ′ extended solid solution in a splat-cooled Ag-50 at.% Cu alloy

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Abstract

The structure of the γ′ extended solid solution in electron transparent areas of a splatcooled Ag-50 at.% Cu alloys was examined by transmission electron microscopy. This phase was usually found to be spinodally decomposed at large grain sizes (−1μm in diameter), in contrast to X-ray diffraction data indicating that the γ′ solid solution was undecomposed. A solidification model for rapidly quenched eutectic alloys is proposed to account for the observed structure of the splat-cooled alloy. A transformation curve for the spinodal decomposition of γ′ is also calculated and related to predictions derived from the solidification model.

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Authors and Affiliations

  1. Department of Mining and Metallurgical Engineering, University of Queensland, St. Lucia, Brisbane, Australia

    P. G. Boswell & G. A. Chadwick

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  1. P. G. Boswell
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  2. G. A. Chadwick
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Boswell, P.G., Chadwick, G.A. The structure of the γ′ extended solid solution in a splat-cooled Ag-50 at.% Cu alloy. J Mater Sci 12, 1879–1894 (1977). https://doi.org/10.1007/BF00566250

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  • DOI: https://doi.org/10.1007/BF00566250

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