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研究了酸雨大气环境下建筑用Q235钢的腐蚀行为。结果表明,电化学腐蚀实验的阴极同时存在氧的还原和铁锈层的还原两种化学反应。随着实验循环次数的增加,铁锈层的还原反应会取代氧的还原反应而成为主要反应。
The corrosion behavior of Q235 steel for construction under acid rain atmosphere was studied. The results show that there are two kinds of chemical reactions, reduction of oxygen and reduction of rust layer, simultaneously in the cathode of electrochemical corrosion test. As the number of experimental cycles increases, the reduction reaction of the rust layer takes the place of the oxygen reduction reaction and becomes the main reaction.