锡、锌对铜合金耐腐蚀性的影响  

INFLUENCE OF TIN AND ZINC ON CORROSION RESISTANCE OF COPPER ALLOYS

作　　者：张荣军[1] 张天明[1] 

机构地区：[1]长安大学工程机械学院,西安710064

出　　处：《腐蚀与防护》2007年第2期65-66,69,共3页Corrosion & Protection

摘　　要：通过在纯铜中添加Sn、Zn元素铸造试样,采用阳极极化测定法研究在弱酸(pH值为6)、弱碱性(pH值为8)溶液中Sn、Zn两元素对铜合金腐蚀行为的影响。试验结果显示,含5%Sn的铜合金在弱酸性溶液中能形成更加致密和稳定的钝化膜,从而提高铜合金的耐蚀性;在弱碱性溶液中,Sn、Zn对提高铜合金的耐蚀性作用不明显。To determine the influence of tin, zinc on the corrosion behavior of copper alloys in the weak acid （pH6） and weak basic （pHS） solutions, the method of anodic polarization test was adopted. The copper alloy with 5% Sn formed compact and stable protective film in the weak acid solution, and accordingly improved the corrosive resistance of and relatively, and in the weak basic solution, the effect of both tin and zinc was indistinctive.

关 键 词：铜 耐蚀性 锡 锌 

分 类 号：TG174.2[金属学及工艺—金属表面处理]