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首页> 外文期刊>International Journal of Electrochemical Science >Galvanic Corrosion Behavior of Aluminum Alloy (2219 and ZL205A) Coupled to Carbon Fiber-Reinforced Epoxy Composites
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Galvanic Corrosion Behavior of Aluminum Alloy (2219 and ZL205A) Coupled to Carbon Fiber-Reinforced Epoxy Composites

机译：铝合金（2219和ZL205A）与碳纤维增强环氧树脂复合材料的电偶腐蚀行为

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摘要

The galvanic corrosion behaviors between carbon fiber-reinforced epoxy composites (CFREC) andaluminum alloy (2219 and ZL205A) in 3.5 wt.% sodium chloride solutions were evaluated bylaboratory electrochemical measurement. The corrosion morphology, products and galvanic currents ofgalvanic couples were measured. The results indicate that there were serious galvanic corrosion whenthese two kinds of materials were coupled for 10 hours in 3.5wt.% NaCl solution, corrosion pits andgrooves can be clearly observed on both aluminum alloys; the galvanic current of 2219 is slightlyhigher than that of ZL205A which both decrease with time; the average galvanic current density of-2 -2 2219 and ZL205A is 20.19Acm and 16.08 Acm respectively; as a result, two types of aluminumalloys are not allowed to contact with CFREC directly in hygrothermal salt spray environment.
机译：通过实验室电化学测量，评估了碳纤维增强环氧复合材料（CFREC）与铝合金（2219和ZL205A）在3.5％重量的氯化钠溶液中的电偶腐蚀行为。测量了电偶的腐蚀形态，产物和电电流。结果表明，两种材料在3.5wt。％的NaCl溶液中偶联10小时，均会发生严重的电偶腐蚀，两种铝合金上均清晰可见腐蚀点和沟槽。 2219的电流电流略高于ZL205A的电流，两者均随时间而减小。 -2 -2 2219和ZL205A的平均电流密度分别为20.19Acm和16.08 Acm;结果，两种类型的铝合金不允许在湿热盐雾环境中直接与CFREC接触。

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