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钛基合金抗高温氧化搪瓷涂层制备及性能表征 被引量:7

Preparation and Characterization of Anti-oxidation Enamel Coating for Ti-based Alloys at High Temperature
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摘要 为解决钛及其合金抗高温氧化烧蚀问题,采用两搪两烧方法在TA1与TC4基体表面制备厚90-110μm的搪瓷涂层。利用X射线衍射仪、光学和扫描电子显微镜表征搪瓷涂层的显微结构、界面形貌,通过EDS线扫描分析界面处主要元素分布,试验结果表明搪瓷涂层结构致密,与基体形成化学结合,抗落球冲击和热震性能优异。最后通过750°C下,100 h不连续高温氧化试验表明,搪瓷涂层是一种有效的抗高温氧化涂层。 The enamel coating with the thickness of 90-110 microns is prepared on TA1 and TC4 titanium substrates to solve the problems of high temperature oxidation after coating and enameling for twice.The microstructure and the interfacial morphology of the samples are respectively characterized by X-ray diffractometer,optical and scanning electron microscopy.The profiles of main elements at the interface between the substrates and enamel coating are analyzed by EDS.Experimental results indicate that the dense enamel coating has perfect thermal shock and ball-dropping impact resistance properties owing to chemical bonding at the interface.It is concluded from the results of the oxidation test at 750 °C for 100 h that the enamel coating is an effective anti-oxidation coating at the high temperature.
出处 《南京航空航天大学学报》 EI CAS CSCD 北大核心 2010年第4期505-509,共5页 Journal of Nanjing University of Aeronautics & Astronautics
基金 国家自然科学基金(50571045)资助项目 江苏省重大成果专项基金(BA2006067)资助项目
关键词 钛及其合金 搪瓷涂层 抗高温氧化 Titanium and its alloys enamel coating high-temperature oxidation resistance
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