利用电化学极化曲线方法和电化学阻抗(EIS)技术研究了非晶合金Zr55Al10Cu30Ni5在3.5%NaCl溶液中的电化学行为.极化曲线测试结果表明,非晶合金Zr55Al10Cu30Ni5在3.5%NaCl溶液中具有很好的耐蚀性能,阳极过程表现出钝化的特征,当极化电位很高时,非晶合金出现了点腐蚀.电化学交流阻抗测试表明,在阴极极化、开路电位和钝化电位下,非晶合金的Nyquist图由单容抗弧构成,具有很高的电荷转移电阻,表现出优良的耐蚀性,在点蚀电位附近和点蚀电位区EIS分别有两个时间常数和三个时间常数.非晶合金在3.5%NaCl溶液中浸泡12 h后,耐蚀性能有所下降.
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