首页|复合材料-金属连接用不锈钢抽芯铆钉湿热海洋环境适应性研究

复合材料-金属连接用不锈钢抽芯铆钉湿热海洋环境适应性研究

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目的 研究A286 不锈钢抽芯铆钉连接碳纤维复合材料与 7075 铝合金以及碳纤维复合材料与TC4 钛合金夹层板组成的两类组件在湿热海洋环境中的适应性.方法 将不锈钢抽芯铆钉连接的两类夹层板进行盐雾加速腐蚀试验,腐蚀后采用图像处理方式评价腐蚀情况.结果 不锈钢铆钉的复合材料与铝合金组件在经过腐蚀试验后,铝合金发生严重腐蚀.而复合材料与钛合金组件在经过腐蚀试验后,复合材料板面出现了大量褐色的腐蚀产物,钛合金无明显腐蚀.结论 复合材料与铝合金连接件在盐雾环境中会导致铝合金板遭受电偶腐蚀,而不锈钢抽钉不受到腐蚀,而复合材料板和钛合金板连接件在盐雾环境中会导致不锈钢抽钉遭受电偶腐蚀,而钛合金板不受到腐蚀.
Adaptability of Stainless Steel Blind Rivets for Composite-Metal Fastening in Hot and Humid Marine Environment
To study the adaptability of two types of assemblies consisting of A286 stainless steel core-pull rivets connecting carbon fibre composites with 7075 aluminium alloys and carbon fibre composites with TC4 titanium alloy sandwich panels in hot and humid marine environments.The two types of sandwich panels connected by stainless steel core-pulling rivets were subjected to accelerated salt spray corrosion tests,and the corrosion was evaluated by image processing after corrosion.After the composite material with stainless steel rivets and aluminium alloy components underwent salt spray accelerated corrosion test,the aluminium alloy underwent severe corrosion.And the composite material and titanium alloy components after the corrosion test,the composite material plate surface appeared a large number of brown corrosion products,titanium alloy no obvious corrosion.Composite materials and aluminium alloy connectors in the salt spray environment will lead to aluminium alloy plate suffered galvanic coupling corrosion,while the stainless steel drawbolt is not subjected to corrosion,while the composite material plate and titanium alloy plate connectors in the salt spray environment will lead to stainless steel drawbolt suffered galvanic coupling corrosion,while the titanium alloy plate is not subjected to corrosion.

A286 stainless steel rivetscomposite materialsmetallic materialsgalvanic corrosion

刘恕骞、马婉萍

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成都飞机设计研究所,成都 610091

A286不锈钢铆钉 复合材料 金属材料 电偶腐蚀

2024

环境技术
广州电器科学研究院有限公司

环境技术

CSTPCD
影响因子:0.995
ISSN:1004-7204
年,卷(期):2024.42(9)