Effect of Heat Treatment on Phase Composition and Microstructure of Al-Cu-Fe Alloys with Quasicrystalline Phases

Marina Samoshina; Pavel Bryantsev

doi:10.4028/www.scientific.net/MSF.794-796.833

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HomeMaterials Science ForumMaterials Science Forum Vols. 794-796Effect of Heat Treatment on Phase Composition and...

Effect of Heat Treatment on Phase Composition and Microstructure of Al-Cu-Fe Alloys with Quasicrystalline Phases

Abstract:

The microstructure and phase composition of alloys Al-Cu-Fe in as-cast state and after heat treatment at different temperatures were investigated. The presence of a quasicrystalline phase Al₆₅Cu₂₀Fe₁₅which coexists with crystalline phases in as-cast condition is found. The formation of single quasicrystalline phase composition in Al - 40 wt.% Cu - 17 wt.% Fe alloy after annealing at 800 °C for 100 hours is established. After heat treatment, i.e. closer to equilibrium conditions, the quasicrystalline phase Al₆₅Cu₂₀Fe₁₅ is transformed into quasicrystalline phase Al₁₃Cu₄Fe₃ with more complicated lattice.

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Materials Science Forum (Volumes 794-796)

Pages:

833-838

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.794-796.833

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Online since:

June 2014

Authors:

Marina Samoshina*, Pavel Bryantsev

Keywords:

Heat Treatment, Microstructure, Phase Composition, Quasicrystals

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