Abstract
Magnesium materials - microcrystalline Mg, AZ91 and QE22 alloys - were deformed (Mg in tension, the alloys in compression) at temperatures from 22 up to 300 °C. The same experiments were performed with these materials reinforced by Al₂O₃ particles or fibres. The increase of the characteristic stresses σ₀₂ and σ_max for reinforced materials in comparison with the unreinforced materials is observed. The increase of the stresses depends on temperature. Possible deformation mechanisms are discussed.

Key words
composite material, magnesium alloys, deformation test, characteristic stresses

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