INTERGRANULAR AND EXFOLIATION CORROSION BEHAVIOR OF Al-Li ALLOYS

J Chin Soc Corr Pro

1992, Vol. 12

Issue (2): 180-184 DOI:

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INTERGRANULAR AND EXFOLIATION CORROSION BEHAVIOR OF Al-Li ALLOYS

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Abstract The intergranular and exfoliation corrosion behavior of five Al-Li alloys were inves-tigated using standard experimental methods,and compared with conventional aluminium alloy 7075. The results showed that the Al-Li alloys were better than 7075 alloy in corrosion resistance. In addition,the corrosion resistance for 8090 alloy is better than that for 2090 and 2091 alloys. The effect of metallurgical factors on corrosion susceptibility was also discussed. It was found that the intergranular and exfoliation corrosion suscepti-bility of Al-Li alloys dramatically depended on the composition, heat treatment and grain orientation of alloys.

Received: 25 April 1992

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Zhang Yim~1; Zhu Ziyong~2; Wang Zhengfu~2 Zhao Hongen~1; Lu Yulin~1; Hu Zhuangqi~1 ~1(Institute of Metal Research; Chinese Academy of Sciences) ~2(Institute of Corrosion and Protection of Metals; ChineseAcademy of Sciences). INTERGRANULAR AND EXFOLIATION CORROSION BEHAVIOR OF Al-Li ALLOYS. J Chin Soc Corr Pro, 1992, 12(2): 180-184.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1992/V12/I2/180

[1] Bavarian, B., Becket, J., Parikh, S. N., and Zamanzadeh, M., In Sanders T. H. Jr., Starke E. A. Jr. Eds., Aluminium-Lithium Alloys V, Materials Component Engineering Publication Ltd., UK, 1989, P. 1227
[2] Srivatsan, T. S., Bobecker, C. E., Parikh, S. N., and Zamanzadeh, M., ibid, P. 1237
[3] Baumert, B. A., and Ricker, R. E., In: Bakev, c., Gregron, P. J.. Harris, S, J., and Peel, C. J., Eds, Aluminium-Lithium Alloys, the Institute of Metals Ltd, London, 1986, P. 282
[4] Moore, K., Langan, T. J., Heubaum, F. H., and Pickens, J. R., ibid. [1] , P. 1281
[5] Reboul, M., and Meyer, P., In: Chanpier, G., Dubost, B., Miannay, D., and Sabetay, L., Eds., 4th International Aluminium-Lithium Conference, Journal de Physique, France, 1987, C3 881

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