EIS技术研究镓对铝锌合金的活化作用

Activation Effect Study on Gallium to Aluminum Zinc Alloy Using EIS Technology

本文研究了铝锌合金试样在添加镓后在3%NaCl溶液和模拟油污污染3%NaCl溶液中的EIS特征,加入镓并分析镓对于铝锌合金具有的活化作用。铝锌合金在3%NaCl溶液中有表征离子沉积的感抗弧,但在模拟油污污染3%NaCl溶液中没有表征离子沉积的感抗弧。在添加镓后,在模拟油污污染3%NaCl溶液中,不同镓含量合金EIS高频段呈现表征出试样溶解的多个容抗弧,低频段呈有多个感抗弧。结果表明,微量的镓加入铝锌合金后,在油污介质中仍能使合金活化。

Character of electrochenfical impendence spectroscopy （EIS） of aluminunl zinc alloy and almninum zinc gallium alloy was studied,ploarization potential was -0.85V,in pure and infitate oil polluted 3% NaCl solution. The inffluence of gallium on EIS characteristic of aluminum zinc alloy was studied. In infitate oil polluted 3% NaCl solution , the induction ares at low frequency of EIS to aluminum zinc alloy did not appear. With trace gallium added , the induction ares at low frequency presence in infitate oil polluted 3% NaCl solution, but cannot do that with aluminum zinc alloy, that shows trace gallium can activate aluminum zinc alloy in oil polluted electrolyte.