温度对金属紧固件与碳纤维/环氧复合材料的电偶腐蚀影响的研究

Effect of Temperature on the Galvanic Corrosion Behaviour of Carbon Epoxy Composite-Metalic Fasteners

应用电化学方法研究了碳纤维/环氧复合材料与TC6钛合金、LC4铝合金、30CrMnSiNi2A合金钢的电偶腐蚀行为。在20～60℃温度范围内研究了温度对各偶对的电偶电位及电偶电流的影响。比较了各种紧固件金属材料与碳纤维复合材料构成偶对时的电偶腐蚀性能。

The galvanic corrosion behaviour of galvanic couples composed of carbon epoxy composite material and titanium alloy TC6, aluminium alloy LC4, steel 30CrMnSiNi2A has been studied by electrochemical method. The effect of temperature from 20 to 60℃ on galvanic potential and galvanic current density of galvanic couples has been studied. The different galvanic corrosion behaviours of various galvanic couples composed of carbon epoxy composite material and metal materials used for fasteners have been compared. The results show that the galvanic potentials are in the order of composite-TC6> composite-30CrMnSiNi2A> composite-LC4.