A multi-element aluminum-bronze alloy was prepared by adding some elements（Ni、Fe）into the Cu-Al based alloy in permanent mold casting.Effects of solid solution treatment on corrosion behavior of the Cu alloy prepared were investigated with the help of weight-loss tests

SEM（scanning electron microscope）

EDS（energy dispersedly spectrometer）and XRD（X-ray diffraction）.The results show that the dealuminzation corrosion is dominant in the 3.5% NaCl solution with corrosion rate of 0.029 5 g/（m2·h）and self-corrosion potential of-322mV

while the microstructure of the alloy prepared is composed mainly ofα、β’、γ2and k phases after solid solution treatment（950℃for 2hand aging at 550 ℃for 4h）

and its corrosion rate is 0.022 6g/（m2·h）with self-corrosion potential of-236mV

exhibiting a satisfied corrosion resistance.