通过三种优化工艺体系在Mg-5%Li合金表面上生长陶瓷膜层,分析了膜层的厚度、显微结构、相组成和耐蚀性.结果表明,三种膜层都含有MgO相,微弧氧化试样的耐蚀性能都明最提高.使用Na3PO4体系制备的膜层含有MgF2,膜层最厚、表面有大量裂纹;使用Na2SiO3体系制备的膜层含有橄榄石型Mg2SiO4,耐点蚀性能最好;使用Na2SiO3-Na3PO4体系制备的膜层含有MgSiO3,致密性最好,膜层酎均匀腐蚀性能最好.
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