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Formation of the Physicomechanical Properties and Structure of Cast Al–Mg Alloys in the Solidification Range

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Russian Metallurgy (Metally) Aims and scope

Abstract

An Al–Mg alloy with a wide solidification range is studied in the solid–liquid state as a function of quantitative and qualitative contents of transition group metals. The influence of microalloying with transition and rare-earth metals on solidification, the mechanical properties, and the structure in the solid–liquid state; the linear shrinkage in the solidification range; and the deformability margin of Al–Mg alloys is found. These factors cause the formation of hot cracks in casting and welding. The influence of separate and combined microalloying by transition and rare-earth metals on the technological properties of Al–Mg alloys is investigated. The deformability margin of magnaliums in the solidification range is determined. Unlike other methods for estimating the cracking resistance, we revealed the role of elementary components of this complex technological property, namely, relative elongation and linear shrinkage. This helped us to thoroughly analyze the nature of the action of microalloying by transition elements and the microstructure of a wide-range magnalium on its hot-shortness.

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Funding

This work was carried out as part of the implementation of combined research direction 8.4 “High-strength corrosion-resistant weldable magnesium and cast aluminum alloys for next-generation aerospace engineering products” (Strategic trends in the development of materials and processing technologies for the period until 2030).

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Authors and Affiliations

  1. All-Russia Institute of Aviation Materials (VIAM), Moscow, Russia

    E. V. Belov, V. A. Duyunova, A. A. Leonov & A. V. Trapeznikov

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  1. E. V. Belov
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  2. V. A. Duyunova
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  3. A. A. Leonov
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  4. A. V. Trapeznikov
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Correspondence to E. V. Belov.

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Translated by K. Shakhlevich

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Belov, E.V., Duyunova, V.A., Leonov, A.A. et al. Formation of the Physicomechanical Properties and Structure of Cast Al–Mg Alloys in the Solidification Range. Russ. Metall. 2020, 529–535 (2020). https://doi.org/10.1134/S0036029520050031

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  • DOI: https://doi.org/10.1134/S0036029520050031

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