Abstract
The alloy Al70Si17Fe13 was subjected to a range of rapid solidification conditions and the resulting microstructures were evaluated. It was found that when solidification was sufficiently rapid to bypass the formation of primary intermetallic phases, the alloy consisted of spherical regions of amorphous (or microquasicrystalline) material surrounded by a crystalline phase(s). This microstructure is interpreted as the result of solidification of the amorphous phase from the melt by a first-order transformation. The structure of the amorphous phase is different from that of a liquid (or usual metallic glass).
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Bendersky, L.A., Biancaniello, F.S. & Schaefer, R.J. Amorphous phase formation in Al70Si17Fe13 alloy. Journal of Materials Research 2, 427–430 (1987). https://doi.org/10.1557/JMR.1987.0427
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DOI: https://doi.org/10.1557/JMR.1987.0427