| 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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| 引用本文： | 黄彦良,曹楚南,吕明,林海潮.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[J].腐蚀科学与防护技术,1992(4). |
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| 作者姓名： | 黄彦良 曹楚南 吕明 林海潮 |
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| 作者单位： | 中国科学院金属腐蚀与防护研究所腐蚀科学开放研究实验室，中国科学院金属腐蚀与防护研究所腐蚀科学开放研究实验室，中国科学院金属腐蚀与防护研究所腐蚀科学开放研究实验室，中国科学院金属腐蚀与防护研究所腐蚀科学开放研究实验室 沈阳 110015，沈阳 110015，沈阳 110015，沈阳 110015 |
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| 摘 要： | 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。
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| 关 键 词： | 指数律衰减电流 极化 自腐蚀电流 |
POTENTIAL RESPONSE ANALYSIS OF EXPONENTIALLY DECAYING POLARIZING CURRENT OF ELECTRODE AND ITS APPLICATION TO MEASUREMENT OF CORROSION RATE OF METALS |
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| HUANG Yanliang,CAO Chu''''nan,LU Ming,LIN Haichao.POTENTIAL RESPONSE ANALYSIS OF EXPONENTIALLY DECAYING POLARIZING CURRENT OF ELECTRODE AND ITS APPLICATION TO MEASUREMENT OF CORROSION RATE OF METALS[J].Corrosion Science and Protection Technology,1992(4). |
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| Authors: | HUANG Yanliang CAO Chu'nan LU Ming LIN Haichao |
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| Abstract: | A study on the potential response of exponentially decaying polarizing current of electrode was carried out. The appearance of critical point of the potential-time response of exponentially decaying current was ensured from theoretical analysis, and this has constituted 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 steady-state methods for the system of 321 stainless steel in 0.5mol / L HCl+0.5mol / L NaCl solution at static state shows that the results agree very well. Finally, the instantaneous corrosion currents of 321 stainless steel in 0.5mol / L HCl+0.5mol / L NaCl solution at different stress level are listed. |
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| Keywords: | exponentially decaying current polarization corrosion current |
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