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Effect of Alloying Element on Electromagnetic Interference Shielding Effectiveness of Binary Magnesium Alloys

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Acta Metallurgica Sinica (English Letters) Aims and scope

Abstract

The microstructure, electrical conductivity and electromagnetic interference shielding effectiveness of Mg–X (X = Al, Sn, Y and Gd) alloys in as-cast and solution states were systematically investigated in this study. The electrical conductivity and electromagnetic shielding capacity of binary magnesium alloys decrease linearly with alloying element content. The electromagnetic shielding effectiveness of the binary magnesium alloys with the same alloying element content is as follows: Mg–Gd < Mg–Sn < Mg–Y < Mg–Al. The main reason for the differences in electromagnetic interference shielding of the binary magnesium alloys is the change in conductivity, which is mainly affected by volumetric difference of solute atoms and magnesium atoms, solute atomic valence and configuration of extranuclear electron.

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Acknowledgements

The authors would like to thank the financial supports from the National Key R&D Program of China (No. 2016YFB0301100), the National Natural Science Foundation of China (No. 51571043) and Fundamental Research Funds for the Central Universities (Nos. 2018CDJDCL0019, cqu2018CDHB1A08 and 2018CDGFCL0005).

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Correspondence to Xian-Hua Chen.

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Available online at http://link.springer.com/journal/40195

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Luo, Z., Chen, XH., Song, K. et al. Effect of Alloying Element on Electromagnetic Interference Shielding Effectiveness of Binary Magnesium Alloys. Acta Metall. Sin. (Engl. Lett.) 32, 817–824 (2019). https://doi.org/10.1007/s40195-019-00887-2

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  • DOI: https://doi.org/10.1007/s40195-019-00887-2

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