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Abstract

The mechanical properties (tensile strength, hardness, and relative elongation) of lead alloys containing 2–3% Sb, 0.1–0.5% Sn, and 0.1–0.5% As in the as-cast state and after annealing and quenching were determined. It is established that quenching significantly improves the mechanical properties of the alloys. By variation of the tin content and the thermal treatment conditions it is possible to obtain within certain limits the desired mechanical properties. The anodic dissolution c.d. of lead, and lead alloys containing 2.2% Sb, 0.11% As and 0.25% Sn was determined as a function of the potential. It is found that this alloy has a higher rate of anodic dissolution and lower oxygen overvoltage than those of pure lead.

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