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Corrosion Performance of as-rolled Mg-8Li-xAl Alloys

机译:轧制Mg-8Li-xAl合金的腐蚀性能

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In this paper, corrosion performance of Mg-8Li-xAl alloys (Mg-8Li, Mg-8Li-2Al, Mg-8Li-3Al, Mg-8Li-4Al, wt.%) in different corrosive environments were investigated by means of Scanning electronmicroscope (SEM), Energy-dispersive X-ray spectroscopy (EDS) and Electrochemical impedancespectroscopy (EIS). The microstructure of alloys were studies before and after the corrosion in the airand the hydrogen evolution performance in NaCl solution. The influence of elemental Al on thecorrosion resistance of the alloy is revealed. When the Al content exceeds 3%, the corrosion resistanceof Mg-8Li alloy in air can be obviously improved. Meanwhile, the corrosion resistance of the alloy iscontinuously declining in NaCl solution with the increase of aluminum content.
机译:本文通过扫描研究了Mg-8Li-xAl合金(Mg-8Li,Mg-8Li-2Al,Mg-8Li-3Al,Mg-8Li-4Al,重量%)在不同腐蚀环境下的腐蚀性能。电子显微镜(SEM),能量色散X射线光谱(EDS)和电化学阻抗光谱(EIS)。研究了合金在空气中腐蚀前后的微观结构以及NaCl溶液中氢的析出性能。揭示了元素铝对合金耐蚀性的影响。当Al含量超过3%时,Mg-8Li合金在空气中的耐蚀性明显提高。同时,随着铝含量的增加,合金在NaCl溶液中的耐蚀性连续下降。

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