Formation of Aluminides with L12 Cubic Lattice in Alloys of the Al – Zr – Y and Al – Ti – Y Systems


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Abstract

The conditions of formation of metastable Zr or Ti aluminides with Y under crystallization of superheated melts of the Al – Zr – Y and Al – Ti – Y systems with hypoeutectic and hypereutectic compositions with respect to yttrium are studied. Complex Al3(Zr0.67Y0.33) and Aln(Ti0.67Y0.33) aluminides with cubic lattices are shown to form due to crystallization of the Al – Zr – Y and Al – Ti – Y melts hypereutectic with respect to yttrium after superheating by 300°C above the liquidus temperatures.

About the authors

E. A. Popova

Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences

Email: p.kotenkoff@yandex.ru
Russian Federation, Ekaterinburg

P. V. Kotenkov

Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences; Ural State Federal University after the First President of Russia B. N. Eltsyn

Author for correspondence.
Email: p.kotenkoff@yandex.ru
Russian Federation, Ekaterinburg; Ekaterinburg

A. B. Shubin

Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences

Email: p.kotenkoff@yandex.ru
Russian Federation, Ekaterinburg

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