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Published in: Physics of Metals and Metallography 5/2022

01-05-2022 | STRUCTURE, PHASE TRANSFORMATIONS, AND DIFFUSION

Structure and Properties of Al–4.5Mg–0.15Zr Compositions Alloyed with Er, Y, and Yb

Authors: A. G. Mochugovskiy, R. Yu. Barkov, A. V. Mikhaylovskaya, I. S. Loginova, O. A. Yakovtseva, A. V. Pozdniakov

Published in: Physics of Metals and Metallography | Issue 5/2022

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Abstract

The structure and properties of the Al–4.5Mg–0.15Zr compositions additionally alloyed with Er, Y, and Yb are studied. During low-temperature annealing of the alloys, the precipitates of 3–5 nm in size with the L12 structure are formed. The recrystallization of cold-rolled sheets of the studied alloys starts at a temperature of ~300°С, when the hardness substantially decreases as compared to that of the rolled alloys, and the structure is almost completely recrystallized. During heating to 550°С, the stable recrystallized structure with a grain size of 11–13 µm remains in the alloys with Er and Yb, whereas, in the alloy with Y, the coarse-grained structure with an average grain size of 40 ± 7 µm is formed.
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Metadata
Title
Structure and Properties of Al–4.5Mg–0.15Zr Compositions Alloyed with Er, Y, and Yb
Authors
A. G. Mochugovskiy
R. Yu. Barkov
A. V. Mikhaylovskaya
I. S. Loginova
O. A. Yakovtseva
A. V. Pozdniakov
Publication date
01-05-2022
Publisher
Pleiades Publishing
Published in
Physics of Metals and Metallography / Issue 5/2022
Print ISSN: 0031-918X
Electronic ISSN: 1555-6190
DOI
https://doi.org/10.1134/S0031918X22050088