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Potential Response Analysis of Exponentially Decaying Polarizing Current of Electrode and its Use in the Study of Stress Corrosion Cracking(SCC)of Stainless Steel

Yanliang HUANG Ming LU Chunan CAO Haichao LIN Ming LU Corrosion Science Laboratory , Institute of Corrosion and Protection of Metals , Academia Sinica , Shenyang , 110015 , China

材料科学技术（英文）

A study on the potential response of exponentially decaying polarizing current of electrode was car- ried out.The appearance of critical point of the potential-time response of exponentially decaying current was ensured from theoretical analysis,and this is the theoretical foundation of the critical point method for the measurement of corrosion current of metals.The comparison of the corrosion currents measured by the critical point and static methods for the system of 321 stainless steel in 0.5N HCI+0.5N NaCI solution at static state shows that the results agree very well.Finally.the tran- sient corrosion currents of 321 stainless steel in 0.5N HCI+0.5N NaCl solution at different strain level are listed.

关键词: exponentially decaying current , null , null

指数律衰减电流极化电位响应的解析及其在测定金属的瞬时腐蚀速度方面的应用

黄彦良 , 曹楚南 , 吕明 , 林海潮

腐蚀学报（英文）

本文为适应腐蚀体系中受力试样的腐蚀速度快速测定,对指数律衰减电流的电位响应进行了研究,从理论上导出指数律衰减电流极化的电位响应曲线上有极值点存在,这是用指数律衰减电流极化极值法测定金属腐蚀速度的理论基础。本文把用此方法和稳态方法得出的结果进行了比较,表明两种方法测得的结果比较接近,同时列出了321不锈钢在0.5mol/LHCI+0.5mol/LNaCl体系中不同应力水平时的瞬时腐蚀速度。

关键词: 指数律衰减电流 , polarization , corrosion current

材料期刊网

Potential Response Analysis of Exponentially Decaying Polarizing Current of Electrode and its Use in the Study of Stress Corrosion Cracking(SCC)of Stainless Steel

指数律衰减电流极化电位响应的解析及其在测定金属的瞬时腐蚀速度方面的应用

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