恒电量法测定电化学腐蚀动力学参数的原理与测量系统

中国腐蚀与防护学报

1990, Vol. 10

Issue (4): 330-338

研究报告

本期目录 | 过刊浏览

恒电量法测定电化学腐蚀动力学参数的原理与测量系统

赵常就;陈范才;陈训娥

湖南大学化学化工系;湖南大学化学化工系;湖南大学化学化工系

THE PRINCIPLE OF MEASURING KINETIC PARAMETRS OF ELECTROCHEMICAL CORROSION SYSTEM BY COULOSTATIC PERTURBATION METHOD AND ITS MEASURING SYSTEM

Zhao Changjiu Chen Fancai Chen Xune (Hunan University)

全文: PDF(533 KB)

摘要: 研究了恒电量腐蚀速率仪,建立了恒电量仪与微计算机联机在线测量系统,可用以评定涂装金属的耐蚀性.使用该测量系统,只需一次微极化即可获得重要参数值-极化阻力 R、界面双层微分电容 Cl溶液电阻 R_S 及涂膜层电阻 R、涂膜层电容 Cl。对于非涂装体系,经两次强极化正可获得塔菲尔常数 b、b,结合 Stern-Geary 方程便可算出腐蚀电流 I。

Abstract：A corrosion rate meter for coulostatic perturbation method has been made and a on-line measuring system combined with microcomputer is set up.It can be used to evaluate the corrosion resistance of coated metals by coulostatic perturbation method. Important parameters such as R_p,R_f,C_u,C_f and R_s can be obtained in experiment with only for once weak polarization.For uncoated metal systems,TAFEL slopes b_a and b_c can be obtained with twice strong polarization,and the corrosion current I_(corr)can be calculated with the aid of STERN-GEARY equation.

收稿日期: 1990-08-25

基金资助:中科院腐蚀科学开放研究实验室资助项目的部份工作;;机电部基金委资助项目的部份工作

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引用本文:

赵常就;陈范才;陈训娥. 恒电量法测定电化学腐蚀动力学参数的原理与测量系统[J]. 中国腐蚀与防护学报, 1990, 10(4): 330-338.
. THE PRINCIPLE OF MEASURING KINETIC PARAMETRS OF ELECTROCHEMICAL CORROSION SYSTEM BY COULOSTATIC PERTURBATION METHOD AND ITS MEASURING SYSTEM. J Chin Soc Corr Pro, 1990, 10(4): 330-338.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1990/V10/I4/330

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