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|Title:||On the occurrence of a eutectic-type structure in solidification of Al-Zr alloys|
|Keywords:||Eutectic solidification;Solidification microstructure;Differential thermal analysis (DTA);Electron diffraction;Al-Zr|
|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.|
|Appears in Collections:||Dept of Mechanical Aerospace and Civil Engineering Research Papers|
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