摘要
Abstract
The corrosion behave of 20 steel in the five typical soil (Dongzhou, Wanghua, Lishi, Lutian kuang and Gaoer mountain) of Fushun by indoor buried corrosion test and electrochemical test were studied. The research shows that annual corrosion rate of 20 steel different in five typical soil, from high to low is: Lishi, Lutian kuang, Wanghua, Dongzhou, Gaoer mountain, the most serious corrosion of the 20 steel in Lishi area soil, the annual corrosion rate is 0. 105 9 mm/a, about 10 times as Gaoer mountain area. The electrochemical research shows the serious corrosion of 20 steel in Lishi and Lutian kuang soil,because the immerse hours of native rust film on the surface of 20 steel is slow, the rust film is loose, not compact, discontinuous and instability, and does not have protective function. On the contrary, a continuous, compact and stable rust film can be formed on the surface of 20 steel in Dongzhou, Wanghua and Gaoer mountain soil which is slightly corroded and has protective function.关键词
土壤腐蚀/抚顺/埋片试验/电化学测试/腐蚀行为Key words
Soil Corrosion/Fushun/Indoor buried corrosion test/Electrochemical impedance spectroscopy (EIS)/Polarization curve分类
能源科技
