Abstract
Diffusion reactions have been investigated under high pressures of up to 3·3 GPa in the Al–Mg system. The β-, γ-, and ε- phases appeared in the diffusion zone under vacuum, but only the γ- phase was found in the diffusion zone under high pressure. The occurrence of this phase in the diffusion zone is discussed using computed phase diagrams of the Al–Mg system under high pressure.
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