采用动电位极化、扫描电镜(SEM)和X光电子能谱分析(XPS)等技术研究了含0.4mass%Mn的Zn-0.4Mn合金在模拟海洋大气环境溶液（0.1 mol/L NaCl+0.1 mol/L Na2SO4+0.01 mol/L NaHCO3）中的腐蚀行为.结果表明，Zn和Zn-0.4Mn合金上的腐蚀产物均以ZnO和Zn5(CO3)2(OH)6为主，但Zn-0.4Mn表层有更多的Zn5(CO3)2(OH)6.Mn的作用是使腐蚀产物致密，并促进耐蚀腐蚀产物（Zn5(CO3)2(OH)6）的形成，从而显著提高Zn在此溶液中的耐蚀性能.
The corrosion behavior of Zn-Mn alloy（containing 0.4mass% Mn）in a simulated solution for marine atmosphere environment(0.1 mol/L NaCl+0.1 mol/L Na2SO4+0.01 mol/L NaHCO3) has been studied by potentiodynamic polarizations,scanning electron microscopy(SEM) and Xray photoelectron spectroscopy analysis(XPS).The results indicate that the main corrosion products of both Zn and Zn-0.4Mn alloy are zinc oxide(ZnO) and hydroxycarbonate(Zn5(CO3)2(OH)6).However more hydroxycarbonate is detected in the out layer of corrosion films on Zn-0.4Mn alloy.Mn can significantly increase the corrosion resistance of Zn through the mechanism that it can produce a more compact film and promote the formation of zinc hydroxycarbonate(Zn5(CO3)2(OH)6）a corrosion product with better protectiveness in the solution.
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