On the occurrence of a eutectic-type structure in solidification of Al-Zr alloys

F. Wang; D. G. Eskin; A. V. Khvan; K. F. Starodub; J. J.H. Lim; M. G. Burke; T. Connolley; J. Mi

doi:10.1016/j.scriptamat.2017.02.027

On the occurrence of a eutectic-type structure in solidification of Al-Zr alloys

F. Wang
, D. G. Eskin
, A. V. Khvan
, K. F. Starodub
, J. J.H. Lim
, M. G. Burke
, T. Connolley
, J. Mi

Nuclear Materials Performance

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

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.

Original language	English
Pages (from-to)	75-78
Number of pages	4
Journal	Scripta Materialia
Volume	133
DOIs	https://doi.org/10.1016/j.scriptamat.2017.02.027
State	Published - May 1 2017

Keywords

Al-Zr
Differential thermal analysis (DTA)
Electron diffraction
Eutectic solidification
Solidification microstructure

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10.1016/j.scriptamat.2017.02.027

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title = "On the occurrence of a eutectic-type structure in solidification of Al-Zr alloys",

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.",

keywords = "Al-Zr, Differential thermal analysis (DTA), Electron diffraction, Eutectic solidification, Solidification microstructure",

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doi = "10.1016/j.scriptamat.2017.02.027",

language = "English",

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journal = "Scripta Materialia",

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TY - JOUR

T1 - On the occurrence of a eutectic-type structure in solidification of Al-Zr alloys

AU - Wang, F.

AU - Eskin, D. G.

AU - Khvan, A. V.

AU - Starodub, K. F.

AU - Lim, J. J.H.

AU - Burke, M. G.

AU - Connolley, T.

AU - Mi, J.

PY - 2017/5/1

Y1 - 2017/5/1

N2 - 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.

AB - 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.

KW - Al-Zr

KW - Differential thermal analysis (DTA)

KW - Electron diffraction

KW - Eutectic solidification

KW - Solidification microstructure

UR - https://www.scopus.com/pages/publications/85013632153

U2 - 10.1016/j.scriptamat.2017.02.027

DO - 10.1016/j.scriptamat.2017.02.027

M3 - Article

AN - SCOPUS:85013632153

SN - 1359-6462

VL - 133

SP - 75

EP - 78

JO - Scripta Materialia

JF - Scripta Materialia

ER -

On the occurrence of a eutectic-type structure in solidification of Al-Zr alloys

Abstract

Keywords

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