Abstract
The study results of the phase composition, microstructure, and mechanical properties of rapidly solidified foils of Sn—Zn eutectic alloys doped with antimony are presented. Alloy foils are characterized by uniform distribution of components. The rapidly solidified eutectic alloy consists of dispersed separations of the zinc phase, distributed in a tin matrix; antimony forms an intermetallic compound with zinc. The rapidly solidified eutectic alloy doped with antimony has a microcrystalline structure, no texture is observed. At small grain sizes, twins are formed in eutectic alloys with antimony. The microhardness of the foils increases with increasing antimony concentration. At room temperature, during storage of rapidly solidified foils, decomposition of the supersaturated solid solution is observed. Annealing the foils leads to a decrease in microhardness and coarsening of the microstructure.
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