| 小孔腐蚀保护电位物理意义的研究 |
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| 引用本文： | 秦丽雁,杜元龙.小孔腐蚀保护电位物理意义的研究[J].腐蚀科学与防护技术,1993,5(4):244-248. |
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| 作者姓名： | 秦丽雁 杜元龙 |
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| 作者单位： | 太原钢铁公司钢铁研究所，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 太原 030003，沈阳 110015 |
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| 摘 要： | 通过对Cr13,1Cr18Ni9Ti及1Cr18Ni9不锈钢小孔腐蚀模型电池及“闭塞”阳极电化学行为的研究,实验证明了小孔腐蚀的保护电位E_p是小孔内再钝化状态的宏观反映,而不是“免蚀电位”或者“腐蚀小孔内的自腐蚀电位”,从而澄清了此前对小孔腐蚀保护电位E_p物理意义的种种推测。
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| 关 键 词： | 小孔腐蚀 隙缝腐蚀 保护电位 物理意义 |
| 收稿时间： | 1993-07-25 |
| 修稿时间： | 1993-07-25 |
THE SIGNIFICANCE OF THE PROTECTION POTENTIAL AGAINST PITTING CORROSION |
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| QIN Liyan.THE SIGNIFICANCE OF THE PROTECTION POTENTIAL AGAINST PITTING CORROSION[J].Corrosion Science and Protection Technology,1993,5(4):244-248. |
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| Authors: | QIN Liyan |
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| Abstract: | Based on the studies of a simulating pitting corrosion cell and the electrochemical behaviours of the occluded anode of Cr13, 1Cr18Ni9Ti and 1Cr18Ni9 stainless steels in simulating anolytes, it is demonstrated experimentally that, protection potential against pitting corrosion (E_p) is a microscopic reflection of repassivation within the pit in pitting corrosion system, not the immunity potential or the corrosion potential of the pit of the system. Thus, various conjuctures on the significance of the potential are clarified. |
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| Keywords: | protection potential pitting corrosion crevice corrosion significance |
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