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Inicio  /  Applied Sciences  /  Vol: 13 Par: 18 (2023)  /  Artículo
ARTÍCULO
TITULO

Structure and Electrical Properties of AlFe Matrix Composites with Graphene

Anastasiia N. Petrova    
Dmitry Y. Rasposienko    
Irina G. Brodova    
Liudmila A. Yolshina    
Roman V. Muradymov    
Artem A. Markin    
Vyacheslav V. Marchenkov and Bogdan M. Fominykh    

Resumen

Composites based on Al-Fe alloys and reinforced with three-layer graphene sheets were synthesized ?in situ? under a layer of molten salts. Composites containing 0.12 wt.% graphene were subjected to severe plastic deformation via high-pressure torsion. SEM and TEM were used to study the morphological and size characteristics of the composite structure in the as-cast and deformed states. Herein, it is shown that severe plastic deformation leads to the deformation-induced dissolution of iron-containing aluminides with the formation of a supersaturated Al solid solution with a submicrocrystalline structure. The hardness and electrical properties of the graphene composites were measured in different structural states and compared to the characteristics of the matrix alloy.

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