【摘要】 通过干湿循环加速试验模拟Al表面沉积沙漠浮土情况下的大气腐蚀过程,利用失重分析、扫描电镜（SEM）和大气腐蚀监测仪（ACM）研究浮土中可溶性盐对Al的大气腐蚀的影响。结果表明:浮土中的可溶性盐会使发生大气腐蚀的相对湿度范围变宽,随着可溶性盐含量的提高,Al的腐蚀不断恶化。在可溶性盐成分中,MgCl₂对Al的腐蚀影响最大,NaCl次之,MgSO₄和Na₂SO₄的影响较小。更多还原

【Abstract】 Atmospheric corrosion of aluminium deposited with desert dust was simulated using a laboratoryaccelerated test of cyclic wet-dry.Effects of the soluble salts in desert dust on atmospheric corrosion of aluminium were studied through mass loss,scanning electron microscope（SEM） and atmosphere corrosion monitor （ACM）.The results demonstrated that the soluble salts in dust can widen the scope of relative humidity in which atmospheric corrosion occurs.Atmospheric corrosion of aluminium was getting more seriously with the increasing of the salt content in desert dust.MgCl₂ in desert dust had the strongest influence on atmospheric corrosion of aluminium,then did NaCl,MgSO₄ and Na₂SO₄ had the smaller influence.更多还原