Importance

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Abstract

An AMC, and in particular to an AMC with high strength, high toughness, high thermal conductivity, and good weldability for a 5G base station and a preparation method thereof. A strip of the AMC with high strength, high toughness, high thermal conductivity, and good weldability for a 5G base station can be prepared by an electromagnetically and ultrasonically-controlled twin-roll continuous casting device developed and designed based on chemical composition designing, in-situ nanoparticle strengthening and refinement, and REM microalloying. The composite strip prepared by this technology has fine grains, nano-REM precipitated phases in grains, and in-situ nano-ceramic particles with high thermal conductivity at grain boundaries, which significantly improves strength, toughness, and thermal conductivity of the alloy at room temperature, and increases a grain boundary content and effectively improves roll cold weldability of the alloy strip since the alloy composition design with a low melting point and the significant grain refinement.

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First Claim