%0 Journal Article
%T Effect of pH on the Corrosion and Electrochemical Behavior of 3Cr Steel in CO_2 Saturated NaCl Solution<br>3Cr低合金钢在含饱和CO_2的NaCl溶液中的腐蚀电化学行为
%A JIA Zhijun DU Cuiwei LIU Zhiyong GAO Jin LI Xiaogang
%A <br>贾志军
%A 杜翠薇
%A 刘智勇
%A 高瑾
%A 李晓刚
%J 材料研究学报
%D 2011
%I 
%X The effect of pH value of NaCl solution on the corrosion and electrochemical behaviors of 3Cr low-alloy steel was investigated by electrochemical technique and SEM technique. The results showed that the pH value of NaCl solution had great effect on the structure of corrosion product. The corrosion scale had a monolayer and map cracking appears when pH=2 and 3.9. The corrosion product film had a triple structure when pH=6.5. The pH of corrosion media also had apparent effect on the electrochemical behaviors of the Cr low-alloy steel. With pH increasing, the main cathodic reaction of electrode process altered, resulting in the negative moving of the corrosion potential, and by the increasing of the charge transfer resistance, the corrosion current density decreased.
%K material failure and protection
%K 3Cr low-alloy steel
%K pH
%K electrochemical impedance spectroscopy
%K corrosion<br>材料失效与保护
%K 3Cr低合金钢
%K pH
%K 电化学阻抗谱
%K 腐蚀
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=C101C4C04993B4D94FCD8446E6CBEB3B&aid=3924FE186C90DEE4866330A2BDD5E000&yid=9377ED8094509821&vid=C5154311167311FE&iid=CA4FD0336C81A37A&sid=7C3A4C1EE6A45749&eid=1AE5323881A5ECDC&journal_id=1005-3093&journal_name=材料研究学报&referenced_num=0&reference_num=0