Structure, oxidation resistance and erosion of dc-arc deposited Cr2AlC MAX phase coatings

直流电弧沉积 Cr2AlC MAX 相涂层的结构、抗氧化性和侵蚀性

• 批准号: 248110559
• 负责人: Professor Dr.-Ing. Eckhard Beyer
• 金额: --
• 依托单位: Institut für Werkstoffwissenschaft
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2016-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/248110559?language=en
• 关键词: Structure; oxidation; resistance; erosion; dc

MAX phase thin films have gained increased attention as promision coating systems for high temperature applications and erosive loads. Due to their nanolaminate structure, MAX phases combine metallic and ceramic properties. The general goal of this study is focussed on knowledge-based fabrication of Cr2AlC MAX phase coatings via dc-Arc-PVD, their microstructure characterization as well as chemical and structural modification to improve oxidation resistance. Erosion tests shall give further information on their suitability for practical applications. Research is particularly focussed on the dependence of MAX phase coating structure on the processing parameters, the effect of coating structure on physical and mechanical/technological properties as well as on the oxidation behavior of Arc-PVD Cr2AlC coatings. Erosion resistance of the coatings will be investigated as well.The work planned will significantly widen the current knowledge of structural aspects of coating formation. Also the work will provide valuable information for future industrial application such as protective coatings in gas turbines or highly loaded electrical contacts. Research work is strongly interactive between the two groups involved.

MAX 相薄膜作为适用于高温应用和侵蚀负载的优质涂层系统而受到越来越多的关注。由于其纳米层压结构，MAX 相结合了金属和陶瓷特性。本研究的总体目标集中于通过 dc-Arc-PVD 基于知识的 Cr2AlC MAX 相涂层制造、其微观结构表征以及化学和结构改性以提高抗氧化性。侵蚀试验应提供有关其实际应用适用性的进一步信息。研究重点是 MAX 相涂层结构对加工参数的依赖性、涂层结构对物理和机械/技术性能的影响以及 Arc-PVD Cr2AlC 涂层的氧化行为。还将研究涂层的耐腐蚀性。计划的工作将显着拓宽当前对涂层形成结构方面的了解。此外，这项工作还将为未来的工业应用提供有价值的信息，例如燃气轮机中的保护涂层或高负载电触点。研究工作在两个相关小组之间具有很强的互动性。