Research on Electromagnetic Shielding Effectiveness of Multi-layered LZ91/Al Alloy Composite Materials by Asynchronous Accumulative Roll Bonding

Tongying ZHANG; Hao HU; Junli WANG; Zhongxue FEN; Jiewen GUO; Xueliang LIU

doi:10.5755/j02.ms.29571

Authors

Tongying ZHANG Kunming University of Science and Technology
Hao HU Kunming University of Science and Technology https://orcid.org/0000-0002-1616-4160
Junli WANG Kunming University of Science and Technology https://orcid.org/0000-0001-5461-8461
Zhongxue FEN Kunming University of Science and Technology https://orcid.org/0000-0002-9696-7296
Jiewen GUO Kunming University of Science and Technology https://orcid.org/0000-0003-0850-3190
Xueliang LIU Kunming University of Science and Technology https://orcid.org/0000-0003-1028-939X

DOI:

https://doi.org/10.5755/j02.ms.29571

Keywords:

asynchronous accumulative roll bonding, LZ91 alloy, multi-layered LZ91/Al alloy composite materials, electromagnetic shielding

Abstract

In this paper, the multi-layered LZ91/Al alloy composite materials were prepared by asynchronous accumulative roll bonding (AARB), and the effect of the multilayer structure on the electromagnetic shielding effectiveness of the alloy was investigated. The result show that the number of LZ91 and Al layers increase exponentially with the increase of AARB passes, and the LZ91 layer and Al layer, α-Mg phase and β-Li phase in the alloy are arranged alternately. Besides, as the aggregate thickness of the Al layer increases in the AARB process, the electrical conductivity of the alloy also increases. Thish can effectively improve the electromagnetic shielding effectiveness of the alloy.

Research on Electromagnetic Shielding Effectiveness of Multi-layered LZ91/Al Alloy Composite Materials by Asynchronous Accumulative Roll Bonding

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