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Metal Science and Heat Treatment
Erschienen in: Metal Science and Heat Treatment 9-10/2017

23.01.2017

Effect of Low Additions of Y, Sm, Gd, Hf and Er on the Structure and Hardness of Alloy Al – 0.2% Zr – 0.1% Sc

verfasst von: A. V. Pozdnyakov, A. A. Osipenkova, D. A. Popov, S. V. Makhov, V. I. Napalkov

Erschienen in: Metal Science and Heat Treatment | Ausgabe 9-10/2017

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Abstract

The structure and phase composition of addition alloys based on aluminum with Hf, Er, Gd, Yand Sm and the effect of low additions of these transition metals on the structure and properties of alloy Al – 0.2% Zr – 0.1% Sc are studied. It is shown that individual introduction of Y, Sm, Er, and Gd in an amount of 0.1% each causes formation of eutectic phases Al3Y, Al3Sm, Al3Er and Al3Gd, respectively. An indirect inference is that the additions of Y, Sm, Hf, Er and Gd raise the thermal stability of the Al3 (Sc, Zr) dispersoids after annealing at 250°C with a hold of up to 100 h; softening at 370°C starts after holding for 54 h. Maximum hardening is detected in the case of 0.1% Er and attains 50 HV after a 54-h hold at 370°C.
Vorheriger Artikel A Study of Structural Changes in Pressed Semiproducts from Aluminum Alloy V95ochT2 in the Range of Dark Spots
Nächster Artikel Formation of Fine-Grained Structure and Superplasticity in Commercial Aluminum Alloy 1565ch

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Fußnoten
1
If not mentioned specially, the content of the elements is given in mass percent.
 
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Metadaten
Titel
Effect of Low Additions of Y, Sm, Gd, Hf and Er on the Structure and Hardness of Alloy Al – 0.2% Zr – 0.1% Sc
verfasst von
A. V. Pozdnyakov
A. A. Osipenkova
D. A. Popov
S. V. Makhov
V. I. Napalkov
Publikationsdatum
23.01.2017
Verlag
Springer US
Erschienen in
Metal Science and Heat Treatment / Ausgabe 9-10/2017
Print ISSN: 0026-0673
Elektronische ISSN: 1573-8973
DOI
https://doi.org/10.1007/s11041-017-0050-z

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