电化学噪声技术对不锈钢表面局部腐蚀监测的应用进展  

Application Progress of Electrochemical Noise Technology in Local Corrosion Monitoring of Stainless Steel Surface

作　　者：朱培珂[1] 桂晶 路辉 杨志文 崔明月[1] 李大朋 杨军征[1] 王青华[1] 王艳 ZHU Peike;GUI Jing;LU Hui;YANG Zhiwen;CUI Mingyue;LI Dapeng;YANG Junzheng;WANG Qinghua;WANG Yan(PetroChina Research Institute of Petroleum Exploration&Development,Beijing 100083,China;Safetech Research Institute,Beijing 100083,China;China National Oil and Gas Exploration and De-velopment Co.,Ltd.,Beijing 100034,China)

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]安科工程技术研究院(北京)有限公司,北京100083 [3]中国石油国际勘探开发有限公司,北京100034

出　　处：《电镀与精饰》2021年第1期11-17,共7页Plating & Finishing

基　　金：海外油气田开发关键技术研究与应用(2019D-4413)。

摘　　要：本文介绍了电化学噪声技术的原理及分析方法,利用恒电流极化在不锈钢表面制造局部腐蚀坑,通过电化学噪声技术对不锈钢表面局部腐蚀进行监测,并通过微观形貌、线性极化、电化学阻抗对电化学噪声的监测效果进行验证。结果表明,采用电化学噪声技术能够有效的对局部腐蚀进行监测,且微观形貌、线性极化与电化学交流阻抗的表征测试结果均与电化学噪声测试结果一致。In this paper,the principle and analysis method of electrochemical noise technology were in⁃troduced.Local corrosion pits were made on the surface of stainless steel by constant current polarization and monitored by electrochemical noise technology,and the monitoring effect of electrochemical noise was verified by micromorphology,linear polarization and electrochemical impedance.The results showed that electrochemical noise technology could effectively monitor the local corrosion.The character⁃ization results of the micromorphology,linear polarization and electrochemical impedance are in good agreement with the electrochemical noise test results.

关 键 词：电化学噪声 局部腐蚀 电化学阻抗 不锈钢 

分 类 号：TG174.36[金属学及工艺—金属表面处理]