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利用电泳沉积技术在Inconel600高温合金基体表面制备热障涂层。涂层经1100℃真空烧结2 h后,利用XRD、SEM、自动划痕机和电化学工作站分析涂层的物相、表面形貌、结合强度和抗氯腐蚀能力。结果表明,YSZ/(Ni,Al)复合涂层经真空烧结后,涂层均匀,比YSZ涂层致密。Al、Ni元素的加入,在界面处形成了一定厚度的过渡区。与YSZ涂层相比,YSZ/(Ni,Al)复合涂层与基体结合强度更高。YSZ/(Ni,Al)涂层的抗氯腐蚀与Ni和Ni_3Al有关。
Thermal Barrier Coatings on Inconel600 Superalloy Substrate by Electrophoretic Deposition. The coating was vacuum sintered at 1100 ℃ for 2 h. The coating phase, surface morphology, bonding strength and chlorine corrosion resistance were analyzed by XRD, SEM, automatic scratching machine and electrochemical workstation. The results show that the YSZ / (Ni, Al) composite coating has a uniform coating after vacuum sintering and is more dense than the YSZ coating. Al, Ni elements added at the interface to form a certain thickness of the transition zone. Compared with YSZ coating, YSZ / (Ni, Al) composite coating and matrix bonding strength higher. The corrosion resistance of YSZ / (Ni, Al) coatings is related to Ni and Ni_3Al.