The corrosion behavior of imitation-gold Cu-Zn-Ni-Sn alloys with and without Al was investigated by means of color difference testing, static corrosion measurements, scanning electron microscopy analysis, electrochemical impedance measurements, and x-ray photoelectron spectroscopy analysis. The results showed that aluminum inhibited dissolution of Zn and Sn by the formation of an oxide film on the surface of the Cu-Zn-Ni-Sn alloy during corrosion, effectively improving its corrosion resistance. A transition of the corrosion product from Cu₂O and Cu(OH)₂ to CuO occurred on the surface of Cu-Zn-Ni-Sn-Al alloy, and the corrosion rate of the alloy decreased with increasing corrosion time due to the formation of the oxidation film and the hydrophobic effect of Zn₅(CO₃)₂(OH)₆ in the product layer.

通过色差测试，静态腐蚀测量，扫描电子显微镜分析，电化学阻抗测量和X射线光电子能谱分析，研究了含铝和不含铝的仿金Cu-Zn-Ni-Sn合金的腐蚀行为。结果表明，铝在腐蚀过程中通过在Cu-Zn-Ni-Sn合金表面形成氧化膜来抑制Zn和Sn的溶解，有效地提高了其耐蚀性。Cu-Zn-Ni-Sn-Al合金表面发生了腐蚀产物从Cu ₂ O和Cu（OH）₂到CuO的转变，并且随着腐蚀时间的增加，合金的腐蚀速率降低。膜的氧化和Zn ₅的疏水作用产物层中的（CO ₃）₂（OH）₆。