摘要： 【目的】优化陶瓷增强环氧涂层与不锈钢界面的结合性能，揭示表面预处理、界面微观结构与结合性能之间的内在关联机制。【方法】研究了手动打磨、机械打磨及喷砂 3种预处理工艺对不锈钢表面与涂层的结合性能，通过共聚焦显微镜、 X射线光电子能谱仪、扫描电子显微镜 /能谱仪表征不锈钢表面及涂层界面微观形貌，结合拉拔试验测试涂层附着力，并分析附着力强化机理和界面破坏失效形式。【结果】原始表面因致密氧化膜（Cr₂O₃、Fe₃O₄）存在，涂层与基体间易形成缝隙，涂层附着力最低（4. 9 MPa），破坏以涂层和底材之间的附着破坏为主；手动 /机械打磨通过去除部分氧化膜、构建沟槽，借助机械嵌合与陶瓷相应力调控效应，使附着力提升至 15. 4~18. 0 MPa，破坏呈现涂层和底材之间的附着破坏与涂层内聚破坏混合模式；喷砂清除氧化膜并形成三维凹坑，陶瓷相与凹坑深度嵌合，使附着力达峰值。【结论】表面预处理可显著改变金属基体与涂层的界面微观结构，最终影响涂层结合强度和最终破坏形式，喷砂为最优预处理工艺，为工程实践中陶瓷增强树脂涂层的预处理工艺选型提供了科学依据。

关键词: 陶瓷涂层, 界面结合, 表面处理, 附着力

Abstract: ［Objective］ To optimize the interfacial adhesion between ceramic-reinforced resin coatings and stainless steel，and to reveal the intrinsic correlation mechanism linking surface pretreatment，interfacial microstructure，and adhesion performance.［Methods］This study investigated the effects of three pretreatment processes，namely as-manual grinding，mechanical grinding，and sandblasting. Confocal microscopy，X-ray photoelectron spectroscopy（XPS）， and scanning electron microscopy/energy dispersive spectroscopy（SEM/EDS）were used to characterize the microtopographyof the stainless steel surface and coating interface. Combined with pull-off tests to measure the coatingadhesion，the adhesion enhancement mechanism and interfacial failure modes were analyzed. ［Results］Due to the presence of a dense oxide film（Cr2O3，Fe3O4）on the original surface，gaps were easily formed between the coating and the substrate，resulting in the lowest coating adhesion（4. 9 MPa），the failure was primarily attributed to delamination between the coating and the substrate interface. By removing part of the oxide film and forming grooves，manual/mechanical grinding increased the adhesion to 15. 4-18. 0 MPa by virtue of mechanical interlocking and the stress regulation effect of ceramic phases，and the failure mode presented a mixed pattern of interfaceseparation and coating cohesive failure. Sandblasting removed the oxide film and formed three-dimensional pits，allowing the ceramic phase to interlock deeply with the pits，resulting in peak adhesion.［Conclusion］ Surface pretreatment could significantly alter the interfacial microstructurebetween the metal substrate and the coating，ultimately affecting the bonding strength and final failuremode of coating. Sandblasting was the optimal pretreatment process，providing a scientific basis for theselection of pretreatment processes for ceramic-reinforced resin coatings in engineering practice.

Key words: ceramic coating, interface bonding, surface treatment, adhesion

中图分类号: 

• TQ639. 1