精品文档---下载后可任意编辑AZ91D 镁合金表面磷灰石涂层的制备及其腐蚀行为讨论中期报告摘要：本讨论采纳化学沉积法在 AZ91D 镁合金表面制备了一层磷灰石涂层，并讨论了该涂层对镁合金腐蚀行为的影响。采纳 SEM、XRD、EDS等表征手段对涂层的微观形貌、结构和成分进行了分析，同时采纳电化学测试方法讨论了涂层样品的腐蚀行为，结果表明磷灰石涂层能够有效地提高 AZ91D 镁合金的耐腐蚀性能，减少了腐蚀速率。但涂层的致密性和结合强度还需进一步优化。此外，还探讨了涂层制备过程中的一些问题和解决办法，为进一步优化涂层性能提供了参考。关键词：AZ91D 镁合金；磷灰石涂层；腐蚀行为；化学沉积法Abstract：In this study, a layer of hydroxyapatite coating was prepared on the surface of AZ91D magnesium alloy by chemical deposition, and the influence of the coating on the corrosion behavior of the magnesium alloy was studied. The microstructure, structure and composition of the coating were analyzed by SEM, XRD, EDS and other characterization methods, and the corrosion behavior of the coating samples was studied by electrochemical testing methods. The results showed that the hydroxyapatite coating could effectively improve the corrosion resistance of AZ91D magnesium alloy and reduce the corrosion rate. However, the compactness and bonding strength of the coating still need to be further optimized. In addition, some problems and solutions in the process of coating preparation were discussed, which provided reference for further optimization of the coating performance.Keywords: AZ91D magnesium alloy; hydroxyapatite coating; corrosion behavior; chemical deposition
