GALVANIC CORROSION BEHAVIOR BETWEEN CARBON FIBER REINFORCED PLASTIC MATERIALS AND ALUMINUM ALLOYS

J Chin Soc Corr Pro

2005, Vol. 25

Issue (1): 39-43 DOI:

Research Report

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GALVANIC CORROSION BEHAVIOR BETWEEN CARBON FIBER REINFORCED PLASTIC MATERIALS AND ALUMINUM ALLOYS

Feng Lu;Xiaoyun Zhang;Zhihui Tang;Ming Liu

北京航空航天大学材料科学与工程学院

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Abstract Immersion corrosion,weight loss,galvanic potential and current measurements were conducted in 3.5% NaCl solution.Three tpes of carbon fiber reinforced plastic (CFRP)materials, T300/5222\T300/5405 and T300/QY8911 were used, electrically coupled to the aluminum alloys LY12CZ\7B04 and 2D70.In order to evaluate the effect of the galvanic corrosion between CFRP/aluminum alloy couple on the corrosion behavior of CFRP and aluminum alloy,SEM technique was used to study the morphology of the surface corrosion.The results showed that galvanic corrosion promoted the formation and propagation of the pitting corrosion of the LY12CZ aluminum alloy.Corrosion rate of the aluminum alloy was accelerated,but the surface morphology of the CFRP coupled with aluminum alloy did not change greatly. Galvanic current indicated that there was a serious galvanic corrosion at electrically conducting CFRP and aluminum alloy couples

Key words: galvanic corrosion carbon fiber reinforcedplastic aluminum alloy

Received: 18 July 2003

ZTFLH:

TG172.2

Corresponding Authors: Feng Lu E-mail: feng.lu@biam.ac.cn

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Feng Lu; Xiaoyun Zhang; Zhihui Tang; Ming Liu. GALVANIC CORROSION BEHAVIOR BETWEEN CARBON FIBER REINFORCED PLASTIC MATERIALS AND ALUMINUM ALLOYS. J Chin Soc Corr Pro, 2005, 25(1): 39-43 .

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2005/V25/I1/39

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