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Dissimilar Joining of Al/Mg Light Metals by Centrifugal Compound Casting Process

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Abstract

The centrifugal casting process was used to join and investigate the Al/Mg bimetallic interface composed of commercially-pure aluminum and magnesium metals. In the first set of experiments, molten Al was poured into the solid Mg hollow cylinder, and vice-versa in the second group. The formation possibility of the metallurgical interface was examined. The rotation speed was selected as 1200 revolutions per minute (rpm). The preheating temperature in the case of Al casting and Mg casting was 200 °C and 450 °C, respectively. The characterization of bimetals showed that pouring Mg melt into the Al solid part led to a relatively continuous metallurgical bond. When the Al was cast into the Mg, and contrariwise, the interface thickness reached 2–5 mm and 1.6 mm, respectively. The results of energy-dispersive X-ray spectroscopy (EDS) and scanning electron microscopy (SEM) showed that intermetallic compounds multilayer might form at the interface in both cases. Furthermore, microhardness analysis conformed to the intermetallic compound formation with high hardness in the interface.

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Authors and Affiliations

  1. School of Metallurgy and Materials Engineering, Iran University of Science and Technology, Narmak, 16844, Tehran, Iran

    Morteza Sarvari, Sina Ghaemi Khiavi, Mehdi Divandari & Hassan Saghafian

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  1. Morteza Sarvari
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  2. Sina Ghaemi Khiavi
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  3. Mehdi Divandari
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Sarvari, M., Ghaemi Khiavi, S., Divandari, M. et al. Dissimilar Joining of Al/Mg Light Metals by Centrifugal Compound Casting Process. Inter Metalcast 17, 998–1007 (2023). https://doi.org/10.1007/s40962-022-00832-7

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