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Abstract
Magnesium is one of the lightest structural metals used in different industrial sectors and many works in the literature have studied its reinforcement by filler addition. Basalt fibers are natural fillers that have good mechanical properties, excellent resistance to high temperatures, and lower cost than carbon fibers. Considering this, in recent years, they have been increasingly used in the production of composite materials with polymeric matrices. However, very little information is available in the literature about the use of basalt fibers as reinforcement in metal matrix composite materials. It is well known that the impregnation of fiber reinforcement affects the mechanical behavior of the composite materials. The aim of this study was to investigate the impregnation and the behavior of basalt fibers in a magnesium alloy composite material manufactured by a centrifugal casting technique.
Highlights
Metal matrix composite (MMC) materials represent a satisfactory solution for obtaining lighter materials with improvement in the typical properties of the metal
We focused on manufacturing composite materials with a magnesium alloy matrix and basalt fiber reinforcements by induction melting [12] and centrifugal casting
The aim of this study was to evaluate the impregnation of basalt fibers by a magnesium alloy and to compare the behavior of basalt microfibers (BMFs) and basalt woven fabrics (BWFs) in the magnesium alloy matrix produced by the manufacturing process previously mentioned
Summary
Metal matrix composite (MMC) materials represent a satisfactory solution for obtaining lighter materials with improvement in the typical properties of the metal. Despite this advantage, the production of MMCs still presents some issues that affect the mechanical properties of the final composite in terms of the difficulty of obtaining homogeneous dispersion of reinforcement in the matrix and good impregnation of fillers. Wettability is a property of a solid material regarding the extent to which it can be wetted by a liquid. In this case, the wettability of basalt fibers by molten metal should be evaluated. The wettability between the matrix in the molten state and the reinforcing material depends on several elements, including the intrinsic properties of the material, such as the surface energy of the matrix and reinforcement and the characteristics of the surface of the reinforcement, such as the amount of oxidation and contamination
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