用干湿循环增重法、极化实验研究了Al含量对Mn-Cu基阻尼合金在0.5％ NaCl溶液中耐腐蚀性能的影响,并利用SEM、EDS、XRD等手段对Al元素的影响机理进行了分析.结果表明,Al元素的添加使材料的自腐蚀电位(Ecorr)提高,腐蚀电流密度(Icorr)降低,合金的耐蚀性增加；另一方面,含Al元素的Mn-Cu合金腐蚀产物中Al2O3与Cu2O、Mn3O4、Mn2O3协同作用,使腐蚀层结构致密化,有效阻碍了Cl-向基体的扩散,使材料的耐腐蚀性能提高.
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