- 专利标题: Blade or vane for turbomachine with different diffusion protective coatings and method for manufacture thereof
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申请号: US16051927申请日: 2018-08-01
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公开(公告)号: US10914181B2公开(公告)日: 2021-02-09
- 发明人: Rudolf Stanka , Manfred Dopfer
- 申请人: MTU Aero Engines AG
- 申请人地址: DE Munich
- 专利权人: MTU Aero Engines AG
- 当前专利权人: MTU Aero Engines AG
- 当前专利权人地址: DE Munich
- 代理机构: Barlow, Josephs & Holmes, Ltd.
- 优先权: DE102017213553 20170804
- 主分类号: F01D5/28
- IPC分类号: F01D5/28 ; C23C10/56 ; C23C28/02
摘要:
The present invention relates to a blade or vane for a turbomachine, particularly for an aircraft engine, with a blade element for interacting with the flow medium, wherein the blade has different diffusion protective coatings in various regions on its surface for protection against corrosion and/or oxidation, wherein the diffusion protective coatings are produced by chromizing and/or aluminizing, wherein the blade element is divided into two regions along the longitudinal axis of the blade element, wherein the first region extends over 80 to 95% of the length of the blade element, and the second region extends over the remainder of the length of the blade element, and wherein in both regions, an AlCr diffusion protective coating is applied, and wherein in one of the regions, the AlCr diffusion protective coating has a higher Cr content.
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