Microstructural evolution of Au–35 mass% Ag–15 mass% Cu alloy during ageing at 415 °C

The thermal analyses of Au–35 mass% Ag–15 mass% Cu alloy show different phase transformations (order-disorder transition and precipitation reaction) which have not been well identified before. It is known that the physical properties of this alloy depend on the crystalline and microstructural changes. Thus, to identify all phases optical microscopy, X-ray diffraction (XRD), differential scanning calorimetry, scanning electron microscopy and...