Microstructure and Physical Properties of Magnesium Alloys and Composites

Dear Colleagues,

In the past two decades, the mechanical properties of magnesium alloys and composite has been extensive studied. The deformation behavior, strength, and ductility of the alloys and composites have been determined as a function of microstructures (chemical composition, grain size, foreign atoms, second phase precipitates) and textures. New magnesium alloys have been developed and their mechanical properties have been extensively studied. To the contrary, only limited information on their physical properties have been published,

The physical properties of magnesium alloys are affected by their microstructure evolution. The effects of extrusion, rolling and severe plastic deformation (SPD) techniques (such as ECAP, HPT, ARB) on their physical properties should be investigated, SPD provides a technique suitable for producing microstructures with ultrafine grains. Therefore, it is important to study how the processing methods change the thermal properties—coefficient of thermal expansion, thermal conductivity/diffusivity—and electrical conductivity. Investigations of the effect of the texture formed during processing on the thermal conductivity anisotropy is of great importance for applications. The alloy composition and structure defects influence also the damping characteristics. The electrical resistivity of Mg alloys is a function of the alloy composition, foreign atom concentration, dislocation density, grain size.

Reinforcements (fibres/particles), their size, volume fraction, mechanical and thermal properties have a significant effect on the physical properties od composites. Knowledge of physical properties of magnesium alloys and composites is important in many fields of science and engineering applications.

The purpose of the paper submitted to this Special Issue is to extend our current knowledge on the physical properties of magnesium alloys and composites. Your contributions are welcome.

Prof. Dr. Pavel Lukáč
Guest Editor

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