Al2O3 reinforced Fe–Al composite coatings prepared by double glow discharge technique
Al2O3 reinforced Fe–Al composite coatings prepared by double glow discharge technique
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DOI：
10.1179/1743294413y.0000000172
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发表时间：
2013-09
影响因子：
2.8
通讯作者：
C. Wang;Y. Lin;X. Guo;J. Tao;Alumina Al2O
中科院分区：
文献类型：
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作者：
C. Wang;Y. Lin;X. Guo;J. Tao;Alumina Al2O
采用双辉光放电技术，仅在 580°C 的温度下在 316L 不锈钢表面制备了氧化铝 (Al2O3) 颗粒增强铝化铁涂层（Fe-Al 涂层）。分别采用掠射角（1°）X射线衍射仪、X射线光电子能谱仪和扫描电子显微镜（SEM）对涂层的化学成分和形貌进行表征。还评估了铝化物涂层的硬度、磨损和腐蚀行为。结果表明，由于Al2O3颗粒在涂层中分布均匀，铝化物涂层具有良好的耐磨性和耐腐蚀性。随着Al2O3颗粒含量的增加，复合涂层的摩擦系数先增大后减小，同时腐蚀电位和显微硬度呈增大趋势。最后讨论了涂层的磨损机理。
Alumina (Al2O3) particles reinforced iron aluminide coatings (Fe–Al coatings) were prepared on the surface of 316L stainless steel at only 580°C by a novel approach, namely double glow discharge technique. The chemical composition and morphology of the coatings were characterised by means of glancing angle (1°) X-ray diffractometry, X-ray photoelectron spectroscopy and scanning electron microscopy (SEM) respectively. The hardness, wear and corrosion behaviours of the aluminide coatings were also evaluated. The results indicated that the aluminide coatings exhibited a good wear and corrosion resistance since Al2O3 particles were well distributed in the coatings. The friction coefficient of the composite coatings increased first and then decreased with the increment of Al2O3 particles, meanwhile the corrosion potential and microhardness tended to increase. Finally, the wear mechanisms of the coatings were discussed.