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Process for internally coating gas turbine blades or vanes and internally coated gas turbine blade or vane produced thereby
Process for internally coating gas turbine blades or vanes and internally coated gas turbine blade or vane produced thereby
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机译:用于内部涂覆燃气涡轮叶片或叶片的方法以及由此生产的内部涂覆燃气涡轮叶片或叶片的方法
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摘要
A process for internally coating gas turbine blades or vanes with protective diffusion layers by way of a CVD process in a coating space at elevated temperature uses a process gas, a halide as activator, and a metallic material as donor for generating coating gas in the coating space. At a coating temperature, the pressure in the coating space is reduced by gas being sucked out. This is followed by refilling, at increasing pressure, with halide gas in order to immediately reform coating gas with the donor material.
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