摘要
利用极化曲线、扫描电子显微镜、失重试验等方法,分析讨论了污染土壤的pH值在3.5~4.5之间变化时对Q235钢腐蚀的变化规律。综合各项试验数据得出,由于不同的阴极去极化机理,Q235钢腐蚀速度在pH值为4.0左右时降至最低。
The corrosion regulation of Q235 steel in contaminated soils with different pH values between 3. 5 and 4. 5 was studied by means of polarization curves, scanning electron microseopy(SEM) and weight loss testing. Due to different cathodic depolarization mechanisms, the corrosion rate of Q235 steel was the lowest at the point of pH value 4.0.
出处
《腐蚀与防护》
CAS
北大核心
2009年第5期300-302,共3页
Corrosion & Protection
基金
国家自然科学基金项目(50671112)
国家自然科学基金重大项目(50499333)资助
科技部国家科技基础条件平台项目(2005DKA10400)
关键词
PH值
污染土壤
极化曲线
pH values contaminated soils polarization curve