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首页> 外文会议>International Workshop on Advanced Metallic Materials and Processing Techniques for Aeronautical Applications; 20051118-20; Nanjing(CN) >A novel anti-corrosion coating for magnesium alloy
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A novel anti-corrosion coating for magnesium alloy

机译：新型镁合金防腐涂料

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摘要

A novel enviromental protective water based metallic coating were prepared on the surface of AZ91D magnesium alloy. The properties and structure of the coating were investigated by adhension test, hardness test, heat resisting test, neutral salt spray test and scanning electron microscopy (SEM). The results show that the coating has a stepped structure which can achieve good adhesion of first-grade, heat resistance temperature of 400℃ , hardness of HV_(0.50/30) 210 and anti-corrosion time of 250 h in salt spray test. Meanwhile, the film forming and corrosion mechanism of the coating were also put forward based on the results of the Fourier transform infrared spectroscopy (FTIR) test and electrochemical impedance spectroscopy (EIS) test.
机译：在AZ91D镁合金表面制备了一种新型的环保水性金属涂料。通过附着力试验，硬度试验，耐热试验，中性盐雾试验和扫描电子显微镜（SEM）研究了涂层的性能和结构。结果表明，该涂层呈阶梯状结构，在盐雾试验中具有良好的一级附着力，耐热温度为400℃，硬度为HV_（0.50 / 30）210，耐腐蚀时间为250 h。同时，根据傅立叶变换红外光谱（FTIR）测试和电化学阻抗谱（EIS）测试的结果，提出了涂层的成膜和腐蚀机理。

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