Thermal stability of grain structure and material properties in an annealing-twinned Ag-8Au-3Pd alloy wire

In a Ag-8Au-3Pd wire, a large number of annealing twins can be observed. In contrast to the rapid grain growth in Au and Cu wires during aging at 600 °C, the grain size of this Ag alloy wire remained almost unchanged. The annealing twins in this material also possess the dual merits of increasing strength and elongation with aging time, while the electrical resistivity remained constant.