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J Chin Soc Corr Pro  1984, Vol. 4 Issue (1): 30-40    DOI:
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ELECTROCHEMICAL BEHAVIOR WITHIN THE SCC CRACKS OF ALUMINUM ALLOY LC-4
Huang Zixun He Yedong Hou Li (Beijing Institute of Aeronautics and Astronautics;Beijing;China)
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Abstract  A new method for the determination of potential and pH value within the SCC cracks has been proposed.The simple device can be conveniently used to measure and follow the electrochemical behavior within the SCC cracks or any corrosion crevices with high accuracy. In this paper,both the results of the measurements within SCC cracks as well as crack tips of LC-4 aluminum alloy and a discussion with these data in relation to the potential-pH diagram of aluminum alloy were presented. The authors proposed an equivalent circuit model constructed by the couple of numerous corrosion microcells in accordance with the results of measure- ment to explain the data from our experiments.For aluminum alloy LC-4,the relationship between the pH and the crack tip potential will be: =-0.750-0.043 pH(SCE) In the Pourbaix diagram,the position of the corrosion system will extend through the region of passivity in response to the sensitivity of SCC of the alloy.
Received:  25 February 1984     
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Huang Zixun He Yedong Hou Li (Beijing Institute of Aeronautics and Astronautics;Beijing;China). ELECTROCHEMICAL BEHAVIOR WITHIN THE SCC CRACKS OF ALUMINUM ALLOY LC-4. J Chin Soc Corr Pro, 1984, 4(1): 30-40.

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[1] Brown,B.F.;Dahlberg,E.P.,J.Electrochem.Soc.,116,2,218(1989)
[2] Smith,J.A.;Peterson,M.H.;Brown,B.F.,Corrosion,26,12,539(1970)
[3] Davis,J.A.,Localized Corrosion,ed.by R.W.Staehle,et al.,NACE,Houston.Texas,169(1974)
[4] Nguyen,T.H.;Brown,B.F.;Foley,R.T.,Corrosion,38,6,319(1982)
[5] Pourbaix,M.,The Theory of Stress Corrosion Cracking in Alloys,ed.by J.C.Scully,Brussels,NATO,Scientzifie Affairs Division,17(1971)
[6] Chen,C.M.;Froning,M.H.;Verink,Eo D.,Stress Corrosion,New Approaches,ed.by H.L.Craig,Philao,289(1976)
[7] 北村公一、佐藤栄一:轻金属,29,12,564(1979)
[8] Hoar,T.P.,Corrosion,19,10,331(1963)
[9] Doing,P.;Flewitt,P.E.F.,Mechanisms of Environment Sensitive Cracking of Materials,Proceedings of an international Conference,Guildford,ed.by.Swann,et al.,London,113(1977)
[10] Н.Д.托马晓夫著,华保定译,《金属腐蚀及其防护的理论》,机械工业出版社,202(1965)
[11] 北京师范大学无机教研室等编:《无机化学上册》,人民教育出版社,201(1981)
[12] 杭州大学化学系分析化学教研室编:《分析化学手册第一分册》,化学工业出版社,28(1979)
[13] Latanaition,R.M.,在北京钢铁学院的讲学报告。(1981)
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