摘要
通过在Al-Zn-Ga-Si-Bi低驱动电位牺牲阳极材料中添加Ce元素来改善牺牲阳极的性能,并通过电化学阻抗谱(EIS)、动电位极化曲线、恒电位测试等方法对比研究了Al-Zn-Ga-Si、Al-Zn-Ga-Si-Bi、Al-Zn-Ga-Si-Bi-Ce阳极的电化学性能。结果表明,加入Ce元素后,电容量、工作电位多少,牺牲阳极的活化性能提高,溶解形貌显著改善,Al-Zn-Ga-Si-Bi-Ce牺牲阳极的综合性能最佳,可用于核电钛钢复合结构凝汽器的腐蚀防护。
In order to improve the performance of the low voltage sacrificial anode,Ce element was added to the Al-Zn-Ga-Si-Bi anode.The electrochemical performance of Al-Zn-Ga-Si,Al-Zn-Ga-Si-Bi,and Al-Zn-Ga-Si-Bi-Ce were compared by electrochemical impedance spectroscopy(EIS),potentiodynamic polarization curve,potentiostatic analysis and other methods.The results show that the activating performance of the sacrificial anode is improved,the dissolution morphology is significantly improved,after the addition of Ce element.And the comprehensive performance of the Al-Zn-Ga-Si-Bi-Ce sacrificial anode is the best,which can be used for cathodic protection of condenser for a nuclear power station.
作者
刘朝信
王辉
马向阳
张云乾
王海涛
王廷勇
LIU Zhao-xin;WANG Hui;MA Xiang-yang;ZHANG Yun-qian;WANG Hai-tao;WANG Ting-yong(Sunrui Marine Environment Engineering Co.,Ltd.Qingdao 266101,China;Jiangsu Nuclear Power Co.,Ltd.Lianyungang 222042,China)
出处
《全面腐蚀控制》
2023年第8期48-52,67,共6页
Total Corrosion Control
关键词
低驱动电位牺牲阳极
电化学性能
溶解形貌
low-drive potential sacrificial anode
electrochemical performance
dissolution morphology
