碳钢电极在Al_2O_3纳米流体中的腐蚀行为研究  

Analysis of Corrosion Behavior of Carbon Steel in Al_2O_3 Nanofluids

作　　者：周宏旺 葛红花[1] 袁群[1] 孟新静[1] 赵玉增[1] 廖强强[1] 

机构地区：[1]上海电力学院环境与化学工程学院,上海200090

出　　处：《上海电力学院学报》2016年第4期376-379,388,共5页Journal of Shanghai University of Electric Power

基　　金：国家自然科学基金(51471104);上海市重点科技攻关项目(14DZ2261000;11DZ2210500);上海市教育委员会科创重点项目(12ZZ173)

摘　　要：采用电化学阻抗谱和极化曲线研究了碳钢电极在以模拟冷却水为基液的Al_2O_3纳米流体中的腐蚀行为.实验结果表明,Al_2O_3纳米颗粒对碳钢的腐蚀有一定的抑制作用;Al_2O_3纳米流体中碳钢电极的耐蚀性能随着温度的升高而降低,添加分散剂十二烷基苯磺酸钠(SDBS)对碳钢也有一定的缓蚀作用,当SDBS的用量超过一定值时,对碳钢的缓蚀性能开始下降.Corrosion behavior of carbon steel electrode in A12O3nanofluids is analyzed using electrochemical impedance spectroscopy and polarization curve. The experimental results show thatA12O3 nanoparticles exhibit a certain corrosion inhibition to carbon steel. The corrosion resistance of carbon steel electrode decreases with the increase of the temperature of the A12O3 nanofluids. Sodium dodecyl benzene sulfonate（ SDBS ）, dispersant in nanofluids also appears to have corrosion inhibition to carbon steel, and the corrosion inhibition enhances when the concentration of SDBS increases. The corrosion resistance of carbon steel in A12O3 nanofluids decreases when the concen- tration of dispersant SDBS exceeds a certain value.

关 键 词：Al2O3纳米流体 碳钢 十二烷基苯磺酸钠 腐蚀 电化学阻抗谱 

分 类 号：TG174.3[金属学及工艺—金属表面处理]