Solidification of Al65Cu20Co15 and Al65Cu15Co20 alloys
- 1 December 1991
- journal article
- Published by Springer Nature in Journal of Materials Research
- Vol. 6 (12) , 2629-2636
- https://doi.org/10.1557/jmr.1991.2629
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.Keywords
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