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首页> 外文会议>International conference on metallurgy technology and materials >Robust Micro Arc Oxidation Coatings on 6061 Aluminum Alloys via Surface Thickening and Microvoid Reducing Approach
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Robust Micro Arc Oxidation Coatings on 6061 Aluminum Alloys via Surface Thickening and Microvoid Reducing Approach

机译：6061铝合金通过表面增厚和微宽度减少方法鲁棒微弧氧化涂层

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摘要

The hardness and wear resistance of micro arc oxidation (MAO) ceramic coatings were influenced by phase compositions, surface thickness, porosity and microcracks. In this work, ceramic coatings with enhanced microhardness and friction resistance were fabricated on 6061 Al-alloy by increasing thickness and decreasing porosity through adding sodium hexametaphosphate ((NaPO_3)_6) as additive in silicate-based electrolyte. Surface morphologies and microhardness of the as-fabricated MAO coatings were evaluated using scanning electron microscope (SEM) and thickness meter. As a binary additive, the addition of (NaPO_3)_6 in electrolytes can obviously change the surface morphologies, thickness and microhardness of the resultant MAO coatings.
机译：微弧氧化（MAO）陶瓷涂层的硬度和耐磨性受相组合物，表面厚度，孔隙率和微裂纹的影响。在这项工作中，通过在硅酸盐基电解质中加入六偏磷酸钠（（NaPO_3）_6），在6061铝合金上制造具有增强的显微硬度和摩擦阻力的陶瓷涂层。使用扫描电子显微镜（SEM）和厚度计评估由制造的MAO涂层的表面形态和显微硬度。作为二元添加剂，电解质中的（NaPO_3）_6的添加可以明显改变所得MAO涂层的表面形态，厚度和微硬度。

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