Effect of deep cryogenic treatment on the mechanical properties of AlSi7Mg casting alloy
Daniela SPASOVA, Plamen STOYANOV, Plamen PETROV, Nikolay ATANASOV, Radostina YANKOVA
Abstract. Alloys from the Al-Si system are not hardened by heat treatment and are mainly used for casting lightly stressed parts. If Mg (below 1%) is added to the Al-Si system, the hardening after quenching and aging is possible, as a strengthening secondary phase – Mg2Si – is released. Therefore, the AlSi7Mg alloy is one of the most widely used alloys to produce cast automobile wheels, as well as for thin-walled castings with complex relief. In the present study, the possibilities of extra increasing of the mechanical properties of AlSi7Mg alloy by deep cryogenic treatment were investigated. The tests were carried out on samples of AlSi10Mg alloy previously hardened with T6 heat treatment mode (quenching at 530 ℃ temperature and artificial aging at 170 ºС) and on specimens that have not been hardened by heat treatment.
Keywords
Deep Cryogenic Treatment, AlSi7Mg Casting Alloy, Mg2Si
Published online 12/10/2024, 9 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Daniela SPASOVA, Plamen STOYANOV, Plamen PETROV, Nikolay ATANASOV, Radostina YANKOVA, Effect of deep cryogenic treatment on the mechanical properties of AlSi7Mg casting alloy, Materials Research Proceedings, Vol. 46, pp 260-268, 2024
DOI: https://doi.org/10.21741/9781644903377-34
The article was published as article 34 of the book Innovative Manufacturing Engineering and Energy
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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