建筑用钢在混凝土溶液中的腐蚀行为研究  

Corrosion Behavior of Steel Used for Construction in Concrete Solution

作　　者：赵超[1] 

机构地区：[1]许昌学院,河南许昌461000

出　　处：《铸造技术》2015年第4期876-878,共3页Foundry Technology

摘　　要：采用极化曲线法和电化学阻抗技术,研究了建筑用钢在含NO2-、Cl-的混凝土溶液中的腐蚀行为。结果表明,在模拟混凝土溶液中,高的Cl-浓度和低的p H值都使实验钢的耐蚀性降低。在加入Na NO2后,使溶液中的[NO2-]/[Cl-]≥0.4,可最大程度的减小溶液对实验钢的腐蚀。The corrosion behavior of the steel used for construction in the concrete solution including NO2- and Cl- was investigated by polarization curve and electrochemical impedance technique. The results show that the corrosion resistant of the steel decreases when the concentration of Cl- is high and pH value is low in the simulated concrete solution. But the corrosion of the steel decreases with a maximal extent after adding NaNO2 into the solution and controlling [NO2-]/[Cl-] ≥0.4.

关 键 词：建筑用钢 腐蚀行为 极化曲线 

分 类 号：TG172[金属学及工艺—金属表面处理]