碳钢在臭氧中的初期腐蚀行为与机理
Initial Stage Corrosion Behavior and Mechanism of Carbon Steel Exposed to Ozone
摘 要
大气中的臭氧氧化性强，对金属材料的破坏作用非常大。以碳钢为基体，测试其在臭氧存在条件下的腐蚀行为，并进行了自然空气条件下的对比试验;采用扫描电镜、能谱分析和激光拉曼等技术分析了不同条件下碳钢的腐蚀形貌及腐蚀产物，初步探讨了碳钢在臭氧气氛中的腐蚀机理。结果表明，与在自然空气中相比，碳钢在臭氧中的腐蚀更为严重，并且随时间延长腐蚀加重。腐蚀初期产物的主要成分为γ-FeOOH和γ-Fe2O3，随着腐蚀时间的延长，γ-FeOOH会逐步脱水形成γ-Fe2O3和α-Fe2O3。
O3
初期腐蚀
腐蚀机理
carbon steel
O3
initial corrosion
corrosion mechanism
Abstract
Because of the strong oxidizing property, ozone in the atmosphere has great disruptive effects on metal materials. The initial corrosion behaviors of carbon steel in the atmosphere with ozone were studied by setting contrast test in natural air. The corrosion appearance and products of carbon steel under different corrosion conditions were investigated by SEM/EDS and Raman, and the corrosion mechanism was studied preliminarily. The results showed that, compared with the corrosion of carbon steel in natural air, ozone can accelerate the corrosion of carbon steel, and with the extension of time, ozone can aggravate the degree of corrosion. The main corrosion products generated on the surface of carbon steel were γ-FeOOH and γ-Fe2O3, then γ-FeOOH dehydrated and bormed γ-Fe2O3 and α-Fe2O3.
中图分类号 TG171 TG172
所属栏目 试验研究
基金项目 国家自然科学基金(51101058); 华东理工大学基本科研业务(WB1114032)
收稿日期 2013/9/25
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备注蔡兰坤(1966-),教授,博士,从事环境与材料研究,
引用该论文: WU Qiong,YAN Ying,ZHOU Hao,WU Lai-ming,GUO Yu-ping,CAI Lan-kun. Initial Stage Corrosion Behavior and Mechanism of Carbon Steel Exposed to Ozone[J]. Corrosion & Protection, 2014, 35(8): 767
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【3】闫莹,张婷,周浩,等. 铜在臭氧中腐蚀初期的行为与机理[J]. 腐蚀与防护,2012,33(10):845-848.
【4】OESCH S,FALLER M. Environmental effects on materials:The effect of the air pollutants SO2, NO2, NO and O3 on the corrosion of copper, zinc and aluminum. A short literature survey and results of laboratory exposures[J]. Corrosion Science,1997,39(9):1505-1530.
【5】PEHKONEN A,SALO T,AROMAA J J,et al. Corrosion of stainless steels in ozone and peracetic acid bleaching: The work details what happens in these harsh environments[J]. Pulp & Paper Canada,2000,101(4):46-49.
【6】杨敏,王振尧. 铜的大气腐蚀研究[J]. 装备环境工程,2006,3(4):38-39.
【7】高青,毛磊,吴立成,等. 铜在大气中的腐蚀[J]. 河北科技大学学报,2003,24(4):29-34.
【8】WEISSENRIEDER J,KLEBER C,SCHREINER M,et al. In situ studies of sulfate nest formation on iron[J]. Journal of the Electrochemical Society,2004,151(9):497-504.
【9】WIESINGER R,SCHREINER M,KLEBER C. Investigations of the interactions of CO2, O3 and UV light with silver surfaces by in situ IRRAS/QCM and ex situ TOF-SIMS[J]. Applied Surface Science,2010,256(9):2735-2741.
【10】罗曦芸,吴来明. 陈列银币变色原因初步分析[J]. 文物保护与考古科学,2006,18(2):14-19.
【11】莱格拉夫 C,格雷德尔 T(著). 大气腐蚀[M]. 韩恩厚译. 北京:化学工业出版社,2005:97.
【12】DUNNWALD J,OTTO A. The application of Ramon spectroscopy to the study of atmospheric rust systems[J]. Corrosion Science,1989,29(10):1167.
【13】施建成,王桂华,王欣,等. 新鲜铁表面锈蚀过程的拉曼光谱研究[J]. 上海师范大学学报:自然科学版,2001,30(4):62-66.
【14】胡涛,路欣,阎研,等. 用纯铁氧化法生长的铁氧化物样品的拉曼光谱研究[J]. 光谱学与光谱分析,2004,24(9):1072-1074.
【15】YAMASHITA M,MIYUKI H,MATSUDA Y,et al. The long term growth of the protective rust layer formed on weathering steel by atmospheric corrosion during a quarter of a century[J]. Corrosion Science,1994,36(2):283-299.
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【17】GUI J,DEVINE T M. The influence of sulfate ions on the surface enhanced Raman spectra of passive films formed on iron[J]. Corrosion Science,1994,36(3):441-462.
【18】李言涛,李延旭. 低合金钢在海洋各腐蚀区带的锈层研究[J]. 海洋与湖沼,1998,29(6):651-655.
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