Structure of Thin Ribbons from an Al – Co Alloy Under Rapid Cooling


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Abstract

The effect of superheating of melt on structure formation in hypereutectic alloy Al – 1.2 at.% Co is studied under the conditions of rapid cooling. It is shown that any superheating of the melt yields a double-phase structure in ribbons, which is represented by an aluminum solid solution partially supersaturated with cobalt and cobalt aluminides. Annealing changes the morphology of the cobalt aluminides. The solid solution decomposes at about 350°C.

About the authors

S. G. Men’shikova

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

Author for correspondence.
Email: svetlmensh@mail.ru
Russian Federation, Izhevsk

I. G. Shirinkina

Institute for the Physics of Metals of the Ural Branch of the Russian Academy of Sciences (IFM UrO RAN)

Email: svetlmensh@mail.ru
Russian Federation, Ekaterinburg

I. G. Brodova

Institute for the Physics of Metals of the Ural Branch of the Russian Academy of Sciences (IFM UrO RAN)

Email: svetlmensh@mail.ru
Russian Federation, Ekaterinburg

V. I. Lad’yanov

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

Email: svetlmensh@mail.ru
Russian Federation, Izhevsk

A. A. Suslov

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

Email: svetlmensh@mail.ru
Russian Federation, Izhevsk

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