CFRP与金属结合件盐雾腐蚀试验研究

Research on Salt Spray Corrosion Tests of CFRP and Metal Assembly

采用中性盐雾、乙酸盐雾、铜加速乙酸盐雾3种电化学方法研究碳纤维/环氧复合材料与CR4级冷轧钢板的电偶腐蚀行为。比较了CR4级冷轧钢板与碳纤维复合材料紧固件构成偶对时3种盐雾腐蚀试验的电偶腐蚀性能。结果表明在NaCl电解质溶液体系中电偶腐蚀作用对CFRP影响不大,CFRP基本没有受到腐蚀。

The galvanic corrosion behavior of CFRP and CR4 cold rolled steel sheets was studied by using neutral salt spray,acetic acid salt spray and copper accelerated acetic acid salt spray.The galvanic corrosion performances of CR4 cold rolled steel sheet and carbon fiber composite assembly in three salt spray corrosion tests were compared.The results have shown that galvanic corrosion has little effect on CFRP in NaCl electrolyte solution,with CFRP hardly corroded.