Phase transformation behavior of Cu–10Ni–3Al–0.8Si alloy

Microstructure evolution of solution treated Cu–10Ni–3Al–0.8Si alloy aged at different temperatures was investigated and different transformation products were observed: modulated structure resulting from spinodal decomposition, L12 ordering of matrix, continuous Ni3Al precipitates, continuous δ-Ni2Si precipitates and discontinuous precipitates. Modulated structure, L12 ordering of matrix and micro-twins formed initially at 450 °C, while...