混凝土介质中普通低碳钢和细晶粒钢的耐蚀性研究  

Study on Corrosion Resistance of Fine Grain Steel and Low Carbon Steel in Concrete

作　　者：王炎[1] 

机构地区：[1]湖北第二师范学院建筑与材料工程系,湖北武汉430205

出　　处：《铸造技术》2014年第4期669-671,共3页Foundry Technology

摘　　要：在模拟混凝土孔溶液中,利用循环伏安与动电位极化曲线、Mott-Schottky曲线和电化学阻抗谱对经钝化处理后普通低碳钢与细晶粒钢的耐蚀性进行研究。结果表明,细晶粒钢与普通低碳钢的公共钝化电位区域为-0.25~0.45V,微量元素的含量与晶界的数量影响细晶粒钢钝化膜的耐蚀性。The corrosion resistant of low carbon steel and fine grained steel after passivation in simulated concrete pore solution were studied by cyclic voltammograms and potentiodynamic polarization curves, Mott Schottky curve and electrochemical impedance spectroscopy. The results show that the public passivation potential areas of the fine grained steel and low carbon steel are- 0.25~0.45 V, and the content of trace elements and the number of grain boundary have an effect on the corrosion resistance of fine grain steel passivation film.

关 键 词：混凝土 细晶粒钢 钝化 点蚀 耐蚀性 

分 类 号：TG174.3[金属学及工艺—金属表面处理]