Q235B钢在模拟空调水系统中的腐蚀行为  

Corrosion Behavior of Q235B Steel in Simulated Circulating Water System of Air-Condition

作　　者：程鹏[1] 王江顺[1] 陶利佳[1] 付朝阳[1] 刘宏芳[1] 罗逸[1] 

机构地区：[1]华中科技大学化学与化工学院,湖北武汉430074

出　　处：《材料保护》2012年第5期57-59,87,共3页Materials Protection

摘　　要：为了弄清中央空调循环水系统对空调用钢造成的腐蚀及其影响因素,采用旋转挂片腐蚀试验和电化学方法对模拟空调水中空调用材Q235B钢的腐蚀行为进行了研究。结果表明:随着模拟空调水流速和温度的升高,溶液中溶解氧的扩散速度加快,电荷传递电阻减小,Q235B钢的腐蚀速率加快。Rotating coupon-hanging corrosion tests and electrochemical measurements were conducted to investigate the corrosion behavior of Q235B steel in simulated circulating water system of air-condition.It was found that with increasing flow velocity and temperature of the simulated circulating water system of air-condition,the diffusion velocity of dissolved oxygen in water was accelerated,and the charge transfer resistance was reduced,leading to increased corrosion rate of Q235B steel.

关 键 词：腐蚀行为 空调水系统 Q235B钢 

分 类 号：TG172.5[金属学及工艺—金属表面处理]