Electrochemical corrosion studies and pitting corrosion sensitivity of a self‐pierce rivet joint of carbon fibre reinforced polymer (CFRP) – laminate and EN AW‐6060‐T6
Electrochemical corrosion studies and pitting corrosion sensitivity of a self‐pierce rivet joint of carbon fibre reinforced polymer (CFRP) – laminate and EN AW‐6060‐T6
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DOI：
10.1002/mawe.201200945
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发表时间：
2012-04
影响因子：
1.1
通讯作者：
M. Mandel;L. Krüger
中科院分区：
文献类型：
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作者：
M. Mandel;L. Krüger
采用电化学方法研究了EN AW-6060-T6自冲铆钉接头和碳纤维增强塑料（CFRP）层压板接头的电偶腐蚀，其中碳纤维增强塑料（CFRP）层压板接头采用Almac®涂层自冲钢铆钉，氯化钠溶液。此外，根据VDA 621 - 415（VDA = Verein Deutscher Automobilhersteller）标准试验，在气候室中检查接头并进行显微镜观察。单个组件的电化学测试已经表明，材料的铆接可能导致铝合金表面的点蚀，并促使铆钉的防腐蚀层Almac®溶解。接头暴露于气候室后，通过显微镜观察证实了预测的腐蚀行为。
The galvanic corrosion of a self‐pierce rivet joint of EN AW‐6060‐T6 and a carbon fibre reinforced plastic (CFRP) laminate joint by an Almac®‐coated self‐pierce steel rivet was electrochemically investigated in a 5 wt.% sodium chloride solution. Furthermore, the joint was examined in a climate chamber according to the VDA 621‐415 (VDA = Verein Deutscher Automobilhersteller) standard test and microscopically observed. Electrochemical tests of the single components already reveal that a rivet joint of the materials can lead to pitting corrosion on the aluminium alloy surface and enforces the dissolution of the anti‐corrosion layer Almac® of the rivet. This predicted corrosion behaviour was confirmed by the microscopic observations after the exposure of the joint in the climate chamber.