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电化学  2007 

张力对斜拉桥拉索镀锌钢绞线腐蚀行为影响

, PP. 297-301

Keywords: 斜拉桥,拉索,钢绞线,腐蚀行为

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Abstract:

应用伏安极化法和中性盐雾腐蚀试验研究了张力作用下斜拉桥拉索镀锌钢绞线在5%NaCl溶液中腐蚀行为.腐蚀产物理化性质由XRD、TG-DTA等测试表征.结果表明,镀锌钢绞线的腐蚀电流,即腐蚀速率随试验前施加的张力增加而增大,其产生白锈的盐雾试验周期小于1,经15~22kN张力作用后的镀锌钢绞线,产生红锈的盐雾试验周期为16,而经0、10kN张力作用的钢绞线,产生红锈的周期则延长至23,钢绞线腐蚀产物主要是Zn5Cl2(OH)8.H2O、Zn4(CO3)(OH)6.H2O和ZnO.

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