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采用ｘ射线衍射（ＸＲＤ）、扫描电镜（ＳＥＭ）等方法初步研究了镁合金微等离子体氧化膜的相组成及形貌特征。结果表明，该技术能在镁合金表面生长一层厚度大于１００μｍ并与基体结合良好的氧化膜，提高了合金的耐蚀性。在ＮａＡｌＯ２溶液中对ＭＢ１５镁合金微等离子体氧化时，氧化膜由ＭｇＯ和ＭｇＡｌ２Ｏ４相组成。铝元素已扩散到膜内层，但膜表层存在铝元素富集区。
The phase composition and morphology of micro-plasma oxidation film of magnesium alloy were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results show that this technology can grow a layer of oxide film with a thickness of more than 100μm on the surface of magnesium alloy and improve the corrosion resistance of the alloy. MBO magnesium alloy in the NaAlO2 solution micro-plasma oxidation, the oxide film consists of MgO and MgAl2O4 phase composition. Aluminum has spread to the inner layer of the film, but there is an area of aluminum rich in the surface of the film.