Abstract

The influence of the degree of shear strain under a high quasi-hydrostatic pressure on the formation of anomalously supersaturated solid solutions and ultramicrocrystalline (UMC) structure in a ternary Al-Cr-Zr alloy has been studied. The dissolution of aluminides in the three-phase alloy have been investigated. The behavior of the deformed material upon annealing has been studied. It is shown that, because of the decomposition of the supersaturated solid solution, the alloy possesses high thermal stability (to 300°C) and enhanced (by a factor of two) hardness (to 1.2 GPa).

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