|
|||||
|
|
| 35钢在模拟酸雨溶液中的腐蚀行为 | |
| 引用本文： | 向斌,左秀丽,李星. 35钢在模拟酸雨溶液中的腐蚀行为[J]. 材料保护, 2010, 43(1) |
| 作者姓名： | 向斌 左秀丽 李星 |
| 作者单位： | 重庆大学化学化工学院,重庆,400044;重庆大学化学化工学院,重庆,400044;重庆大学化学化工学院,重庆,400044 |
| 摘 要： | 35钢在城市交通工程中应用越来越多,酸雨对其腐蚀严重,过去对其研究不多。为此,配制了模拟酸雨溶液,研究了35钢在模拟酸雨溶液中的腐蚀行为,探讨了酸雨酸度和浸泡时间对35钢腐蚀行为的影响。采用极化曲线、电化学交流阻抗(EIS)及扫描电镜(SEM)方法对35钢的腐蚀进行了测试分析。结果表明:随着模拟酸雨溶液pH值的降低,35钢的腐蚀电流逐渐增大,腐蚀速率增大,腐蚀电位负移;随着浸泡周期的延长,阻抗谱中锈层阻抗增大,腐蚀速率降低,表面生成的腐蚀锈层对基体起到一定的保护作用。SEM和EDS分析表明,35钢在低pH值的酸雨中腐蚀严重,表面蚀坑密集且深,腐蚀产物粗大疏松,致密性差,为硫酸盐,而pH值升高时腐蚀相对较轻,蚀坑较小。 |
| 关 键 词： | 腐蚀 模拟酸雨 35钢 pH值 交流阻抗谱 |
Corrosion Behavior of 35 Steel in Simulated Acid Rain |
|
| XIANG Bin,ZUO Xiu-li,LI Xing. Corrosion Behavior of 35 Steel in Simulated Acid Rain[J]. Journal of Materials Protection, 2010, 43(1) | |
| Authors: | XIANG Bin ZUO Xiu-li LI Xing |
| Affiliation: | XIANG Bin,ZUO Xiu-li,LI Xing (School of Chemistry , Chemical Engineering,Chongqing University,Chongqing 400044,China) |
| Abstract: | The corrosion behavior of 35 steel in simulated acid rain was eval-uated.The effects of the acidity and immersion time on its corro-sion behavior were investigated by measuring the polarization curves and electrochemical impedance spectrum and observing with a scanning electron microscope.It was found that the corro-sion current and corrosion rate of 35 steel increased with decrea-sing pH value of simulated acid rain,correspondingly the corro-sion potential of 35 steel became negative.At the same time,the i... |
| Keywords: | corrosion simulated acid rain 35 steel pH value electrochemical impedance spectrum |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |