摘要
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。
The thermal barrier coatings on Inconel600 superalloy substrate surface was prepared by electrophoretic deposition techniques. After the coating vacuum sintering at 1100 ℃ for 2 h, XRD, SEM, automatic scratch machine and electrochemical workstation were used to analyze the coating phase, surface morphology, bonding strength and resistance to chloride corrosion. The results show that, YSZ/ （Ni, A1） composite coatings after vacuum sintering is uniform, and the coating is denser than YSZ coating. A certain thickness of the transition zone is formed at the interface by adding Al and Ni element. Compared with YSZ coatings, YSZ/ （Ni,Al） composite coating has higher bonding strength with substrate. The chlorine corrosion resistance of YSZ/（Ni, Al） coating is related with Ni and Ni3Al.
出处
《热加工工艺》
CSCD
北大核心
2016年第20期161-164,共4页
Hot Working Technology
基金
上海工程技术大学研究生科研创新项目(15KY0501)
关键词
电泳沉积
热障复合涂层
结合强度
电化学腐蚀
electrophoretic deposition
thermal barrier composite coating
bonding strength
electrochemical corrosion
