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Tailor-made coatings for turbine applications using the triplex pro 200

机译：使用Triplex Pro 200为涡轮机量身定制的涂料

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In modern jet engines, the efficiency of the compressor stages is highly dependent on the clearance between blade tip and casing. In order to improve efficiency of gas turbines (i.e. areo engines as well as land based gas turbines), the gap between the rotating turbine blades and casing has to be minimized. Any increase in the gap results in power loss. Abradable coatings permit a minimization of the clearance and control of the over-tip leakage by allowing the blade tips to cut into the coating. Thermal sprayed abradable coatings aim at a well balanced profile of properties relevant for the application as abradable seals. Amongst others these include: abradability, ageing resistance, corrosion and oxidation resistance, surface finish and bond strength to substrate materials. In this work, abradable coatings consisting of a multiphase material, comprising a metal matrix in addition to a solid lubricant as well as a defined level of porosity, were developed using the Triplex Pro 200 (Sulzer Metco, Wohlen, Switzerland) in order to increase the reproducibility and deposition efficiency. Additionally the influence of the process parameters on coating characteristics such as porosity, hardness and, resulting from this, coating erosion properties and abradability was investigated.
机译：在现代喷气发动机中，压缩机级的效率高度依赖于叶尖与壳体之间的间隙。为了提高燃气轮机（即，立体发动机和陆基燃气轮机）的效率，必须使旋转的涡轮机叶片与壳体之间的间隙最小。间隙的任何增加都会导致功率损耗。可磨耗的涂层通过允许刀片尖端切入涂层中，从而使间隙最小化并控制尖端泄漏。热喷涂耐磨涂层的目标是使性能平衡良好，与用作耐磨密封件的应用相关。其中包括：耐磨性，耐老化性，耐腐蚀和抗氧化性，表面光洁度以及与基材的粘合强度。在这项工作中，使用Triplex Pro 200（Sulzer Metco，Wohlen，Switzerland）开发了一种由多相材料组成的耐磨涂层，该涂层包括除固体润滑剂外的金属基体以及一定水平的孔隙率，以提高耐磨性。重现性和沉积效率。此外，还研究了工艺参数对涂层特性（如孔隙率，硬度）的影响，并由此影响了涂层的腐蚀性能和耐磨性。

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