Abstract: The corrosion resistance and behavior of Cu-14%Al- X bronze in 3.5% NaCl solution has been investigated by using static immersing corrosion test, X-ray diffraction(XRD) and scanning electron microscope (SEM). The results indicated that the corrosion resistance of Cu-14%Al-X is perfect in 3.5% NaCl solution. With the temperature increases from 20 ℃ to 80 ℃, the corrosion rate rises from 0.032 4 mm/a to 0.131 2 mm/a. (a +g 2) phase suffers a dealuminization attack superior to b￠ phase,a phase and K phase. After corrosion, the contents of Al and Mn reduce obviously, while the content of Cu increases, which showed that the high Al-bronze suffers dealuminization corrosion.

Key words: Aluminum bronze alloy, Corrosion, Corrosion rate, Corrosion resistance, Dealuminization