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·528· 北京科技大学学报 2004年第5期 参考文献 7 Qu Q,Yan C W,Wan Y,et al.Effects of NaCl and SO:on 1 QuQ,Yan C W,Wan Y,et al.Influence of NaCl deposition the initial atmospheric corrosion of zinc [J].Corrosion, on atmospheric corrosion of A3 steel [J.J Mater Sci 2002,44:2789 Technol,2002,18(6):552 8屈庆,严川伟,张蕾,等.NaC1和SO,在A3钢初期大 2 Pacheco A MG,Teixeira MGI B,Ferreira MG S.Initial 气腐蚀中的协同效应[].金属学报,2002,38(10): stages of chloride induced atmospheric corrosion of iron: 1062 an infrared spectroscopic study [J].Br Corros J,1990,25 9 Lindstrom R,Svensson JE,Johansson L G.The influence (1):579 of carbon dioxide in the atmospheric corrosion of some 3 Neufeld A K,Cole I S,Bond A M,et al.The Initial mech- magnesium alloys in the presence of NaCl [J].J Electro- anism of corrosion of zinc by sodium chloride particle de- chem Soc,.2002,149(4):B103 10 Falk T,Svesson JE,Johansson L G.The influence of CO, position [J].Corros Sci,2002,44:555 4 Svensson JE,and Johansson LG.A Laboratory Study of and NaCl in the atmospheric corrosion of zinc [J].J Elec- trochem Soc,.1998,145(9:2993 the Initial Stages of the Atmospheric Corrosion of Zinc in the Presence of NaCl;Influence of SO,and NO:[J],Cor- 11 Bengtsson BD,Lindstrom R.The influence of CO:on the NaCl-induced atmospheric corrosion of aluminium [J].J ros Sci,1993,345):721 5朱日彩.金属腐蚀学M)北京:怡金工业出版社, Electrochem Soc,2001,148(4):B127 1993.209 12 Eriksson P,Johansson L G,Strandberg H.Initial stages of 6托马晓夫著.金属腐蚀及其保护的理论[M.北京: copper corrosion in humid air containing SO:and NO:[J]. 中国工业出版社,1964.251 J Electrochem Soc,1993,140(1):538 Atmospheric Corrosion Initial Stages of Magnesium Alloy in the Presence of NaCl and SO2 LIN Cui,LI Xiaogang2 1)Corrosion and Protection Center,Key Laboratory for Corrosion,University of Science and Technology Beijing,Beijing 100083,China 2)State Key Laboratory for Corrosion and Protection,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 10016,China ABSTRACT The effects of NaCl and SO2 on the initial atmospheric corrosion of AZ91D magnesium alloy were studied with a simulated atmospheric corrosion system.The analyses of surface morphology,corrosion products and rust layer structure were integrated by Scanning Electron Microscopy (SEM)and X-Ray Diffraction (XRD)to in- vestigate the corrosion performance.The results showed that NaCl accelerated the initial atmospheric corrosion of the alloy.The protective film was destroyed in the initial period,but the corrosion rate slowed down because of the formation of slight soluble corrosion products in the later periods in the presence of NaCl.Soluble corrosion pro- ducts with no inhibitive function developed and partly solved to form the ions of free motion when NaCl and SO: existed simultaneously.A greal deal of these products were very difficult to grow on the surface in a short time.The combined effect of NaCl and SO.on the initial atmospheric corrosion was greater than that caused by each single component. KEY WORDS SO,:NaCl:initial stage:AZ91 magnesium alloy:combined effect一 北 京 科 技 大 学 学 报 年 第 期 参 考 文 献 , 台 , 白 , , , , , 刀 , , , , , , , , , , , , 朱 日彰 金 属 腐蚀 学 〔 北 京 冶金 工 业 出版社 , 托 马 晓夫 著 金 属 腐蚀及 其保护 的理 论 北 京 中国工 业 出版社 , , 、 乞 , 从 , 住 , , 屈 庆 , 严 川 伟 , 张 蕾 ,等 和 在 钢 初 期大 气腐蚀 中的协 同效应 金 属 学报 , , 民 , 劝 刀 , , , , , , , 一 , , , , 【 , , 加 乙石 , 葱。 。 刀 ,, , 时 , 】 盯 , 盯 , , , , 切 仃 】 , 廿 曲 一 任比 劝 即 而 , 叭
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