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Microstructural evolution in rapidly solidified Al-Fe alloys: An alternative explanation

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Abstract

The solidification sequences in aluminum containing 8 and 16 wt pct iron are described in terms of the formation of metastable and stable primary intermetallic phases. These alloys were studied in the chill-cast and splat-quenched conditions, and marked differences in microstructure due to the different cooling rates were observed. Contrary to previous work, it is proposed that the 50-nm intercellular particles observed in the “zone A” regions of the splat-quenched alloys are primary in nature; this may account, in part, for their remarkable thermal stability.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, University of Florida, 32611, Gainesville, FL

    J. D. Cotton (Graduate Student) & M. J. Kaufman (Associate Professor)

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  1. J. D. Cotton
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  2. M. J. Kaufman
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Cotton, J.D., Kaufman, M.J. Microstructural evolution in rapidly solidified Al-Fe alloys: An alternative explanation. Metall Trans A 22, 927–934 (1991). https://doi.org/10.1007/BF02659002

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