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Synthesis of stable quasicrystalline particle-dispersed Al base composite alloys

Published online by Cambridge University Press:  18 February 2016

An Pang Tsai
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980, Japan
Kiyoshi Aoki
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980, Japan
Akihisa Inoue
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980, Japan
Tsuyoshi Masumoto
Affiliation:
Institute for Materials Research, Tohoku University, Sendai 980, Japan
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Extract

We report the preparation of the quasicrystalline particle-dispersed Al base composite alloys for the first time. Icosahedral AlCuFe quasicrystalline (i-AlCuFe) particles were homogeneously dispersed in a crystalline Al matrix using a novel process which combined mechanical alloying and hot press techniques. Hardness of the composite alloy increases with increasing volume fraction of the i-AlCuFe particle, i.e., increases from 25 kg/mm2 for pure Al to about 120 kg/mm2 for a 25 vol. % i-AlCuFe particle dispersed alloy.

Type
Research Article
Copyright
Copyright © Materials Research Society 1993

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