In Situ Laser Microscopy on Corrosion in Deposition Coated Magnesium Alloy
In Situ Laser Microscopy on Corrosion in Deposition Coated Magnesium Alloy
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原位激光显微镜观察沉积涂层镁合金的腐蚀情况
DOI：
10.2320/matertrans.42.1243
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发表时间：
2001
影响因子：
1.2
通讯作者：
H. Tsubakino
中科院分区：
文献类型：
--
作者：
A. Yamamoto;Atsushi Watanabe;Kana Sugahara;S. Fukumoto;H. Tsubakino
用In SINS激光显微观察技术研究了气相沉积技术制备的镁涂层AZ31合金在1%NaCI溶液中的腐蚀行为，并与3N-Mg、6N-Mg和未涂层AZ31合金的腐蚀行为进行了比较。在AZ31合金和3N-镁合金中均出现了丝状腐蚀，而在6N-镁合金和沉积涂层中则没有发生丝状腐蚀。普通腐蚀似乎抑制了6N-Mg和沉积涂层样品中氢轮毂的演化。沉积涂层的耐腐蚀性与6N-Mg相当。
Corrosion behavior in magnesium coated AZ31 alloy prepared by vapor deposition technique was examined by means of in sins laser microscopic observations in 1% NaCI solution in comparison with those in 3N-Mg, 6N-Mg and uncoated AZ3 1 alloy. General corrosion and evolution of hydrogen bubbles at stationary points were observed in all the specimens, Filiform corrosion occurred in the AZ31 alloy and in the 3N-Mg, while it did not occur in the 6N-Mg and deposition coated specimen. General corrosion seemed to suppress the evolution of hydrogen hubbles in the 6N-Mg and deposition coated specimen. Superior corrosion resistance in the deposition coated specimen was confirmed, which is comparable to that in the 6N-Mg.