Effects of Small Amounts of Alloying Elements on the Mechanical Properties of Zn-Cu Binary Alloys

摘要

Effects of additions of 0.1-0.2 at % of each alloying elements, Ti, Cr, Ni, V, Fe, Co, Sb, Mg and Mn on the mechanical properties have been studied in the alloy of Zn-2.0 % Cu. From the results obtained, it was found that the effects of alloying elements can he divided into four groups, such as Ti group, sub-Ti group, Fe group and Mg group. The greatest effect was caused by an addition of the Mg group element. For instance, the addition of O.16 at % Mg has proved to increase considerably the mechanical properties of a Zn-2.0% Cu alloy. The tensile strength of about 25 kg/㎟ was found to he increased up to about 35 kg/㎟.