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Amorphous phase formation in Al70Si17Fe13 alloy

Published online by Cambridge University Press:  31 January 2011

L. A. Bendersky ,
F. S. Biancaniello  and
R. J. Schaefer
L. A. Bendersky
Affiliation:
Metallurgy Division, National Bureau of Standards, Gaithersburg, Maryland 20899
F. S. Biancaniello
Affiliation:
Metallurgy Division, National Bureau of Standards, Gaithersburg, Maryland 20899
R. J. Schaefer
Affiliation:
Metallurgy Division, National Bureau of Standards, Gaithersburg, Maryland 20899
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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).

Type
Materials Communications
Information
Journal of Materials Research , Volume 2 , Issue 4 , August 1987 , pp. 427 - 430
Copyright
Copyright © Materials Research Society 1987

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References

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