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采用恒电流Ｅ－ｔ曲线与旋转盘环电极方法研究了α黄铜（Ｃｕ３２Ｚｎ）在酸性Ｎａ２ＳＯ４和ＨＮＯ３稀溶液中的阳极溶解行为，得到的典型Ｅ－ｔ曲线上存在几个特征区，证明在较低电流密度条件下的初始阶段只存在Ｚｎ的选择性溶解。用恒电位法研究了Ｃｕ３２Ｚｎ选择性溶解过程，得到了按抛物线衰减的暂态扩散曲线，由ｉ－ｔ－１／２直线关系求得了不同介质中Ｃｕ３２Ｚｎ中Ｚｎ的固相扩散系数Ｄ在１０－１６～１０－１３ｃｍ２·ｓ－１数量级，发现中性介质中测出的Ｄ值比酸性介质中要大两个数量级。
The anodic dissolution behavior of α-brass (Cu32Zn) in acidic Na2SO4 and HNO3 dilute solutions was studied by constant current E-t curve and rotating disk electrode method. There are several characteristic regions on the typical E-t curve, Only the selective dissolution of Zn exists in the initial stage at lower current densities. By potentiostatic method, the selective dissolution process of Cu32Zn was studied and the transient diffusion curve was obtained according to the parabolic attenuation. From the relationship of i-t-1/2, the solid diffusion coefficient D of Zn in Cu32Zn in different media was found to be 10- 16 ~ 10-13cm2 · s-1 orders of magnitude, found in the neutral medium measured D value than the acidic medium to be two orders of magnitude larger.