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Solidification of Al65Cu20Co15 and Al65Cu15Co20 alloys

Published online by Cambridge University Press:  31 January 2011

B. Grushko  and
K. Urban
B. Grushko
Affiliation:
Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, Postfach 1913, D-W5170 Jülich, Germany
K. Urban
Affiliation:
Institut für Festkörperforschung, Forschungszentrum Jülich GmbH, Postfach 1913, D-W5170 Jülich, Germany
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Abstract

The solidification behavior of Al65Cu20Co15 and Al65Cu15Co20 alloys was studied by means of scanning electron microscopy, energy-dispersive x-ray analysis, powder x-ray diffraction, and differential thermal analysis. Slowly cooled as well as rapidly cooled ingots of both alloys contained a decagonal quasicrystalline phase as dominant phase with additions of several minor normal-crystalline phases. The decagonal phase was found to solidify in a temperature range limited by two peritectic reactions involving phases of CsCl-type structure. Formation of AlCu and Al2Cu phases was also observed.

Type
Articles
Information
Journal of Materials Research , Volume 6 , Issue 12 , December 1991 , pp. 2629 - 2636
Copyright
Copyright © Materials Research Society 1991

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