Investigation of the Decomposition of Al–Sc Solid Solution during Annealing of Deformed Al–0.5% Mg

Investigation of the Decomposition of Al–Sc Solid Solution during Annealing of Deformed Al–0.5% Mg–Sc Alloys

Published:2023-10-01 Issue:10 Volume:124 Page:923-930
ISSN:0015-3230
Container-title:Физика металлов и металловедение
language:
Short-container-title:Fizika metallov i metallovedenie

Author:

Shcherbak G. V.¹,Kopylov V. I¹,Chuvil’deev V. N.¹,Smirnova E. S.¹,Tabachkova N. Yu.²³,Shadrina Ya. S.¹,Nokhrin A. V.¹,Bobrov A. A.¹,Krutova O. G.¹,Shishulin E. O.¹

Affiliation:

1. Lobachevsky State University of Nizhny Novgorod

2. MISiS National University of Science and Technology

3. Prokhorov General Physics Institute of the Russian Academy of Sciences

Abstract

Abstract—The results of studies of the kinetics of solid solution decomposition during firing of fine-grained conductive alloys Al–0.5% Mg–Sc with different scandium content are presented. The alloys were obtained by induction casting, and the fine-grained microstructure was formed using equal-channel angular pressing. The kinetics of the decomposition of a solid solution has been studied using methods for measuring electrical resistivity and microhardness. The results were analyzed using the Johnson–Mel–Avrami–Kolmogorov equation. It is shown that during the firing of fine-grained alloys, the separation of Al3Sc particles along the nuclei of lattice dislocations is observed, and discontinuous precipitation of scandium in aluminum also occurs.

Publisher

The Russian Academy of Sciences

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