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Title: On the occurrence of a eutectic-type structure in solidification of Al-Zr alloys
Authors: Wang, F
Eskin, D
Khvan, AV
Starodub, KF
Lim, JJH
Burke, MG
Connolley, T
Mi, J
Keywords: Eutectic solidification;Solidification microstructure;Differential thermal analysis (DTA);Electron diffraction;Al-Zr
Issue Date: 2017
Publisher: Elsevier
Citation: Scripta Materialia, (2017)
Abstract: For the first time, experimental evidence is presented for the occurrence of a eutectic reaction in dilute Al-Zr alloys solidified at cooling rates from 0.5 to 5 K/s. Particles which formed at grain boundaries during solidification were confirmed by electron diffraction analysis to be the equilibrium tetragonal DO23 Al3Zr phase. Differential thermal analysis showed a thermal arrest at 658–659 °C, i.e. below the melting point of pure Al, which indicated the presence of a eutectic reaction.
ISSN: 1359-6462
Appears in Collections:Dept of Mechanical Aerospace and Civil Engineering Research Papers

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