UNS G10190钢在碳酸溶液中的电化学反应机理研究  

The Study on Electrochemical Reaction Mechanism of UNS G10190 Steel in Carbonic Acid Solution

作　　者：丁言伟[1] 王凤平[1] 焦庆祝[1] 李杰兰[1] 

机构地区：[1]辽宁师范大学化学化工学院,辽宁大连116029

出　　处：《辽宁师范大学学报（自然科学版）》2005年第3期309-312,共4页Journal of Liaoning Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(50171011)

摘　　要：通过极化测量技术研究了UNS G10190钢在含CO2水溶液中的反应速率与CO2分压的关系,根据实验结果提出了阳、阴极溶解反应的机理.随着CO2分压的增大,UNS G10190钢的腐蚀电位增大,腐蚀速率增大.在碳酸溶液中CO2促进了UNS G10190钢的阴极过程,抑制了阳极溶解反应.The relationship between the reaction rate of UNS G10190 steel and the partial pressure of CO2 in carbonic acid was investigated by means of potentiodynamic polarization measurements. The electrochemical reaction mechanism of anode and cathode was put forward according to the test re- sults. The corrosion potential（Ecorr） and the corrosion rate of LINS G10190 steel increases with the increasing of CO2 partial pressure. CO2 in carbonic acid promotes the cathodic process and inhibits the anodic process of UNS G10190 steel.

关 键 词：电化学反应机理 UNS G10190钢 碳酸溶液 金属腐蚀 

分 类 号：O646[理学—物理化学]