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2023 | OriginalPaper | Chapter

Effect of Zr and Sc on Intermetallic Morphology and Hardening of an Al–Fe Alloy

Authors : Suwaree Chankitmunkong, Dmitry G. Eskin, Chaowalit Limmaneevichitr, Phromphong Pandee, Onnjira Diewwanit

Published in: Light Metals 2023

Publisher: Springer Nature Switzerland

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Abstract

We studied the effect of zirconium and scandium on an Al-7 wt% Fe cast alloy with potential heat- and wear-resistant applications. An addition of 0.2% Zr resulted in thinning of primary Al3Fe particles, while an addition of 0.15% Zr and 0.15% Sc changed the morphology of primary intermetallics from needles to flower-like shape. While the addition of Zr did not affect the properties, the Zr + Sc joint additions increased the hardness of the as-cast Al–Fe alloy. The hardness of the base alloy increased upon annealing from 40 to 80 HV (450 °C, 2 h) and to 110 HV (350 °C, 20 h). The wear resistance of the Al–Fe alloy was also improved by Zr and Sc addition, especially after annealing. The observed effects are likely to be linked to the supersaturation of Zr and Sc in the aluminum solid solution during solidification and precipitation of dispersoids during annealing.

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previous chapter Solute Clustering During Natural Ageing in Al-Cu-(Sc)-(Zr) Alloys
next chapter Effect of Sc, Zr, and Other REE on the 1XXX Conductive Aluminum Alloy Properties
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Metadata
Title
Effect of Zr and Sc on Intermetallic Morphology and Hardening of an Al–Fe Alloy
Authors
Suwaree Chankitmunkong
Dmitry G. Eskin
Chaowalit Limmaneevichitr
Phromphong Pandee
Onnjira Diewwanit
Copyright Year
2023
Book
Light Metals 2023

Print ISBN: 978-3-031-22531-4

Electronic ISBN: 978-3-031-22532-1

Copyright Year: 2023

DOI
https://doi.org/10.1007/978-3-031-22532-1_168

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