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THE INFLUENCE OF DE-ICING SALTS ON CORROSION OF Mg-ALLOYS

机译:除冰盐对镁合金腐蚀的影响

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The seasonal application of de-icing salts on our roads in the northern hemisphere during winter to prevent icing of roads and for snow removal possesses threat to not only shrubs by the road sides but also to certain engineering metals used in our automobiles. In this work, the corrosive effect of these salts on standard commercial magnesium alloys was examined. Immersion tests were carried out with NaCl, CaCl_2 and MgCl_2 solutions. A mixture of NaCl, MgCl_2 and between 10wt.% to 50wt.% of CaCl_2 were also used for the immersion test, and their influence on the corrosion behaviour of the chosen magnesium alloys was studied. Corroded samples were observed using optical microscope, scanning electron microscope (SEM) with energy dispersive X-ray analysis (EDX).
机译:冬季在北半球的道路上季节性应用除冰盐以防止道路结冰和除雪,不仅威胁道路两侧的灌木丛,而且还威胁到我们汽车中使用的某些工程金属。在这项工作中,研究了这些盐对标准商业镁合金的腐蚀作用。用NaCl,CaCl_2和MgCl_2溶液进行浸入测试。还使用NaCl,MgCl_2和10wt。%至50wt。%的CaCl_2的混合物进行浸没测试,并研究了它们对所选镁合金腐蚀行为的影响。使用光学显微镜,扫描电子显微镜(SEM)和能量色散X射线分析(EDX)观察腐蚀的样品。

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