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首页> 外文期刊>Journal of aerospace engineering >Assessment of Residual Performances of Al-CFRP Cocured Hybrid Samples Subjected to Galvanic Corrosion
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Assessment of Residual Performances of Al-CFRP Cocured Hybrid Samples Subjected to Galvanic Corrosion

机译：Al-CFRP固化的杂化样品经受电腐蚀后的残留性能评估

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Tartaric sulfuric anodizing (TSA) and gamma-glycidoxypropyltrimethoxysilane silanization (gamma-GPS) were tested as treatments of Al-2024 and Al-2198 aluminum (Al) alloys for promoting adherence and corrosion protection of the Al-carbon fiber-reinforced plastics (Al-CFRPs) interface in Al-CFRP cocured hybrid materials, and compared with chromic acid anodizing (CAA). The corrosion resistance and the durability of the Al-CFRP interface were investigated and discussed. Polarization curves and Evans diagrams were achieved in NaCl solution, and the adhesion and durability of the interface were evaluated by mechanical tensile test on single-lap joint specimens before and after salt-spray exposure. The results are discussed and compared with CAA to evaluate the proposed treatments as CAA substitution candidate in the REACH European regulation (Registration, Evaluation, Authorization and Restriction of Chemicals). It was found that TSA and gamma-GPS can provide as good adhesion as CAA before salt-spray exposure, but a higher mechanical strength depletion of the interface is obtained after long-term salt-spray exposure compared with CAA. This depletion was attributed to an insufficient long-term corrosion resistance of TSA or gamma-GPS compared with CAA. (c) 2019 American Society of Civil Engineers.
机译：酒石酸阳极氧化（TSA）和γ-环氧丙氧基丙基三甲氧基硅烷硅烷化（γ-GPS）作为Al-2024和Al-2198铝（Al）合金的处理方法进行了测试，以促进铝碳纤维增强塑料（Al -CFRPs）与Al-CFRP共固化的杂化材料中的界面，并与铬酸阳极氧化（CAA）进行了比较。研究和讨论了Al-CFRP界面的耐腐蚀性和耐久性。在NaCl溶液中获得了极化曲线和Evans图，并在盐雾暴露之前和之后，通过机械拉伸试验对单膝关节样品进行了界面粘合和耐久性评估。对结果进行了讨论，并与CAA进行了比较，以评估REACH欧洲法规（化学品注册，评估，授权和限制）中作为CAA替代候选物提出的治疗方法。发现在盐雾暴露之前，TSA和gamma-GPS可以提供​​与CAA一样好的附着力，但是与CAA相比，长期盐雾暴露后，界面的机械强度损耗更高。与CAA相比，这种损耗归因于TSA或γ-GPS的长期耐腐蚀性不足。 （c）2019美国土木工程师学会。

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