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

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

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.

Citation

Wang, F., Eskin, D. G., Khvan, A. V., Starodub, K. F., Lim, J. J., Burke, M. G., Connolley, T., & Mi, J. (2017). On the occurrence of a eutectic-type structure in solidification of Al-Zr alloys. Scripta materialia, 133, 75-78. https://doi.org/10.1016/j.scriptamat.2017.02.027

• Journal Article Type: Article
• Acceptance Date: Feb 18, 2017
• Online Publication Date: Feb 23, 2017
• Publication Date: May 1, 2017
• Deposit Date: Mar 2, 2018
• Publicly Available Date: Mar 6, 2018
• Journal: Scripta Materialia
• Print ISSN: 1359-6462
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 133
• Pages: 75-78
• DOI: https://doi.org/10.1016/j.scriptamat.2017.02.027
• Keywords: General Materials Science; Condensed Matter Physics
• Public URL: https://hull-repository.worktribe.com/output/700680
• Publisher URL: https://www.sciencedirect.com/science/article/pii/S1359646217300933
• Additional Information: This article is maintained by: Elsevier; Article Title: On the occurrence of a eutectic-type structure in solidification of Al-Zr alloys; Journal Title: Scripta Materialia; CrossRef DOI link to publisher maintained version: http://dx.doi.org/10.1016/j.scriptamat.2017.02.027; Content Type: article; Copyright: © 2017 Acta Materialia Inc. Published by Elsevier Ltd.
• Contract Date: Mar 6, 2018