高湿度无污染大气中温度对碳钢腐蚀的影响
Effect of Temperature on Corrosion Behavior of Carbon Steel in Pollution-free Atmosphere with High Relative Humidity
摘 要
通过测试腐蚀速率、观察腐蚀形貌和分析腐蚀产物研究了不同温度高湿度无污染大气中碳钢的腐蚀规律,探讨了温度对碳钢腐蚀行为的影响.结果表明,温度升高会促进碳钢的腐蚀.腐蚀456 h,20 ℃时腐蚀增重呈指数增加规律,腐蚀产物以胞状物生长,在30 ℃和40 ℃环境中腐蚀增重呈指数衰减规律,主要以块状腐蚀物的形式生长,块状腐蚀产物由颗粒状腐蚀产物和胞状腐蚀产物构成.高湿度无污染大气环境中,碳钢表面首先形成水滴,水滴中心作为阳极发生铁的溶解,水滴边缘作为阴极发生氧气的还原,随后水滴中心形成胞状腐蚀产物,在胞状物的周围形成颗粒状腐蚀产物.腐蚀产物主要为γ-FeOOH和α-FeOOH,且随温度的升高,锈层中γ-FeOOH和α-FeOOH增多.
高湿度
碳钢
腐蚀行为
temperature
high relative humidity
carbon steel
corrosion behavior
Abstract
The corrosion performance and the effect of temperature on the corrosion behavior of carbon steel were studied by analyzing corrosion rate,surface morphology and corrosion products.The corrosion rate of carbon steel increased with increasing temperature.During the corrosion period of 456 h in pollution-free atmosphere with 95% relative humidity,the mass gain followed exponential growth law and only cellular corrosion products appeared at 20 ℃,while the mass gain followed exponential decay law and nodular corrosion products were observed at 30 ℃ and 40 ℃.Nodular corrosion products included cellular and granular corrosion products.In atmosphere with high relative humidity,the water droplets formed on the surface of carbon steel firstly.Fe was dissolved at the center of the water droplet and oxygen was reduced at the edge.Then cellular corrosion products were produced at the center of the water droplet and it was found that the granular corrosion products grew around cellular corrosion products.γ-FeOOH and α-FeOOH were detected in the rust layer,and increased at higher temperatures.
中图分类号 TG172.3
所属栏目 试验研究
基金项目 国家自然科学基金资助项目(50601012)
收稿日期 2008/11/13
修改稿日期 2009/5/6
网络出版日期
作者单位点击查看
联系人作者林翠(lincwi@sohu.com)
备注林翠,副教授,博士.
引用该论文: LIN Cui,LIU Yue-e. Effect of Temperature on Corrosion Behavior of Carbon Steel in Pollution-free Atmosphere with High Relative Humidity[J]. Corrosion & Protection, 2009, 30(12): 874～878
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参考文献
【1】曹楚南.中国材料的自然环境腐蚀[M].北京:化学工业出版社,2005.
【2】黄建中,左禹.材料的耐蚀性和腐蚀数据[M].北京:化学工业出版社,2003.
【3】Lan T T N,Thoa N T P,Nishimura R,et al.Atmospheric corrosion of carbon steel under field exposure in the southern part of Vietnam[J].Corrosion Science,2006,48:179-192.
【4】张晓云,蔡建平,马颐军,等.耐候钢和碳钢大气腐蚀规律分析[J].腐蚀科学与防护技术,2004,16(6):389-391.
【5】杨晓梅.钢大气腐蚀的锈层的激光拉曼光谱研究[J].光散射学报,2007,19(2):134-137.
【6】莱格拉夫 C,格雷德尔 T.大气腐蚀[M].北京:化学工业出版社,2005.
【7】徐乃欣,赵灵源,丁翠红,等.碳钢大气腐蚀时表面结露行为的某些影响因素[J].腐蚀与防护,2001,22(12):522-526.
【8】Yamashita M,Konishi H,Kozakura T,et al.In situ observation of initial rust formation process on carbon steel under Na2SO4 and NaCl solution films with wet/dry cycles using synchrotron radiation X-rays[J].Corrosion Science,2005,47:2492-2498.
【9】曾荣昌,韩恩厚.材料的腐蚀与防护[M].北京:化学工业出版社,2006.
【10】王振尧,于国荣,韩薇.碳钢和低合金钢在污染环境中的大气腐蚀规律[J].钢铁研究学报,2003,15(3):47-51.
【11】Katayama H,Noda K,Masuda H,et al.Corrosion simulation of carbon steels in atmospheric environment[J].Corrosion Science,2005,47:2599-2606.
【12】Chung K W,Kim K B.A study of the effect of concentration build-up of electrolyte on the atmospheric corrosion of carbon steel during drying[J].Corrosion Science,2000,42:517-531.
【13】陈惠玲,魏雨.一种碳钢在模拟潮湿环境中腐蚀机理的探讨[J].腐蚀科学与防护技术,2006,18(4):255-257.
【14】Horle S,Mazaudier F,Dillmann P,et al.Advances in understanding atmospheric corrosion of iron.Ⅱ.Mechanistic modeling of wet-dry cycles[J].Corrosion Science,2004,46:1431-1465.
【15】Han W,Yu G,Wang Z Y,et al.Characterization of initial atmospheric corrosion carbon steels by field exposure and laboratory simulation[J].Corrosion Science,2007,49:2920-2935.
【2】黄建中,左禹.材料的耐蚀性和腐蚀数据[M].北京:化学工业出版社,2003.
【3】Lan T T N,Thoa N T P,Nishimura R,et al.Atmospheric corrosion of carbon steel under field exposure in the southern part of Vietnam[J].Corrosion Science,2006,48:179-192.
【4】张晓云,蔡建平,马颐军,等.耐候钢和碳钢大气腐蚀规律分析[J].腐蚀科学与防护技术,2004,16(6):389-391.
【5】杨晓梅.钢大气腐蚀的锈层的激光拉曼光谱研究[J].光散射学报,2007,19(2):134-137.
【6】莱格拉夫 C,格雷德尔 T.大气腐蚀[M].北京:化学工业出版社,2005.
【7】徐乃欣,赵灵源,丁翠红,等.碳钢大气腐蚀时表面结露行为的某些影响因素[J].腐蚀与防护,2001,22(12):522-526.
【8】Yamashita M,Konishi H,Kozakura T,et al.In situ observation of initial rust formation process on carbon steel under Na2SO4 and NaCl solution films with wet/dry cycles using synchrotron radiation X-rays[J].Corrosion Science,2005,47:2492-2498.
【9】曾荣昌,韩恩厚.材料的腐蚀与防护[M].北京:化学工业出版社,2006.
【10】王振尧,于国荣,韩薇.碳钢和低合金钢在污染环境中的大气腐蚀规律[J].钢铁研究学报,2003,15(3):47-51.
【11】Katayama H,Noda K,Masuda H,et al.Corrosion simulation of carbon steels in atmospheric environment[J].Corrosion Science,2005,47:2599-2606.
【12】Chung K W,Kim K B.A study of the effect of concentration build-up of electrolyte on the atmospheric corrosion of carbon steel during drying[J].Corrosion Science,2000,42:517-531.
【13】陈惠玲,魏雨.一种碳钢在模拟潮湿环境中腐蚀机理的探讨[J].腐蚀科学与防护技术,2006,18(4):255-257.
【14】Horle S,Mazaudier F,Dillmann P,et al.Advances in understanding atmospheric corrosion of iron.Ⅱ.Mechanistic modeling of wet-dry cycles[J].Corrosion Science,2004,46:1431-1465.
【15】Han W,Yu G,Wang Z Y,et al.Characterization of initial atmospheric corrosion carbon steels by field exposure and laboratory simulation[J].Corrosion Science,2007,49:2920-2935.
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