通过盐雾/干燥循环加速腐蚀实验模拟海洋大气腐蚀过程,采用宏观形貌观察、电化学测试、X射线衍射(XRD)、扫描电镜(SEM)和能谱(EDAX)等分析手段,研究镀锌钢在模拟海洋大气环境下的腐蚀行为和机理。结果表明:随着腐蚀时间的延长,镀锌钢的耐蚀性先降低后升高,最后再降低;当黄锈刚出现时,试样的耐蚀性有所提升,同时在腐蚀过程中出现双锈层,但最后又消失。 The corrosion process of oceanic atmosphere was simulated by salt spray / dry cycle accelerated corrosion test. The morphology, electrochemical test, X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDAX) Corrosion Behavior and Mechanism of Steel in Simulating Marine Atmosphere. The results show that with the increase of corrosion time, the corrosion resistance of galvanized steel first decreases and then decreases, and then decreases. When the yellow rust just appears, the corrosion resistance of the sample increases and the corrosion resistance of the galvanized steel increases Double rust layer, but in the end disappeared.