Study of the Al–Sc Solid Solution Decomposition during Annealing of Strained Al–0.5% Mg–Sc Alloys.

Autor: Shadrina, I. S., Nokhrin, A. V., Bobrov, A. A., Krutova, O. G., Shishulin, E. O., Shcherbak, G. V., Kopylov, V. I., Chuvil'deev, V. N., Smirnova, E. S., Tabachkova, N. Yu.
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Zdroj: Physics of Metals & Metallography; Oct2023, Vol. 124 Issue 10, p979-986, 8p
Abstrakt: Results of investigations of the kinetics of solid solution decomposition during annealing of fine-grained (FG) Al–0.5% Mg–Sc conductor alloys with different scandium contents are reported. The alloys are prepared by induction casting, and the FG microstructure is formed by equal-channel angular pressing. The kinetics of solid solution decomposition is studied by electrical resistivity and microhardness measurements. The results are analyzed using the Johnson–Mehl–Avrami–Kolmogorov equation. It is shown that, after annealing of the UF alloys, the precipitation of Al3Sc particles at lattice dislocation cores is observed, and discontinuous decomposition of scandium solid solution in aluminum occurs. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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