| Cu和Al对铁素体不锈钢在氯化物介质中腐蚀行为的影响 |
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| 引用本文： | 沈六一.Cu和Al对铁素体不锈钢在氯化物介质中腐蚀行为的影响[J].腐蚀与防护,1997,18(5):3-6. |
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| 作者姓名： | 沈六一 |
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| 作者单位： | 复旦大学化学系 上海200433(沈六一)，机械工业部上海材料研究所 上海200437(沈其昉，杨武) |
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| 摘 要： | 通过测定合金在不同ｐＨ值的含１ｍｏｌ／Ｌ Ｃｌ＾－的水溶液中的阳极极化曲线，绘制了四种铁素体不锈钢的实验电位－ｐＨ图，从而研究了Ｃｕ及Ａｌ元素对不锈钢耐蚀性能的影响。在１８Ｃｒ－２Ｍｏ铁素体不锈钢中添加０．５５％的Ｃｕ使点蚀击穿电位Ｅｂ正移，对局部腐蚀的萌生起阻滞作用。
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| 关 键 词： | 铁素体不锈钢 腐蚀 氯化物 介质 铜 铝 |
EFFECT OF Cu AND Al ON THE CORROSION BEHAVIOR OF FERRITIC STAINLESS STEEL 18Cr-2Mo IN CHLORIDE-CONTAINING SOLUTIONS |
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| Shen Liuyi,Shen Qifang Yang Wu.EFFECT OF Cu AND Al ON THE CORROSION BEHAVIOR OF FERRITIC STAINLESS STEEL 18Cr-2Mo IN CHLORIDE-CONTAINING SOLUTIONS[J].Corrosion & Protection,1997,18(5):3-6. |
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| Authors: | Shen Liuyi Shen Qifang Yang Wu |
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| Abstract: | The effect of addition of Cu and Al to the ferritic stainless steel 18Cr-2Mo on localized corrosion resistance was investigated through measuring anodic polarization curves and establishing experimental potential-pH diagrams of the alloys in solutins containing 1mol/L chloride with various pH values. An addition of 0. 55% Cu to 18Cr-2Mo resulted in a movement of the pitting potential Eb in the noble direction, thus retarded the initiation of localized corrosion. An addition of 0. 15% Al to 18Cr-2Mo exhibited similar inhibition effect on localized corrosion and decreased the critical passivation current density in acidic media. |
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| Keywords: | electric power system dispatching computer management computer control |
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