摘要
用缓蚀剂对电极过程的作用系数分析了硫脲对Ｆｅ在Ｈ２ＳＯ４中腐蚀作用的影响。结果表明，在硫脲浓度极稀时，腐蚀控制由阴极和阳极作用系数共同决定，腐蚀电流随缓蚀剂浓度的升高而增大。在主要的抑制浓度区里，硫脲对Ｆｅ的腐蚀控制是由对阴极的作用系数决定的。
The effect of thiourea on corrosion of iron in H 2SO 4 solution is analyzed by the function coefficient of inhibitor for electrode process. The results showed that, when the concentration of thiourea was very low, corrosion contral was determined by both the anodic and the cathodic function coefficient, the corrosion current density was enhanced by increasing the concentration of thiourea. Within the main inhibiting concentration range of thiourea, corrosion contral was determined by the cathodic function coefficient.
出处
《腐蚀科学与防护技术》
CAS
CSCD
1996年第3期214-218,共5页
Corrosion Science and Protection Technology
基金
国家自然科学基金资助项目
中国科学院百人计划资助项目
关键词
硫脲
电极
电化学
硫酸
纯铁
腐蚀
thiourea, iron, electrochemical, charactristics function, coefficient, active energy
