发明授权
- 专利标题: MCrAlY bond coat with enhanced yttrium
- 专利标题(中): MCrAlY粘结涂层,增强钇
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申请号: US13363486申请日: 2012-02-01
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公开(公告)号: US09428825B1公开(公告)日: 2016-08-30
- 发明人: Paul D. Jablonski , Jeffrey A. Hawk
- 申请人: Paul D. Jablonski , Jeffrey A. Hawk
- 申请人地址: US DC Washington
- 专利权人: U.S. Department of Energy
- 当前专利权人: U.S. Department of Energy
- 当前专利权人地址: US DC Washington
- 代理商 Jacob A. Heafner; Brian J. Lally; John T. Lucas
- 主分类号: B05D3/02
- IPC分类号: B05D3/02 ; B32B15/20
摘要:
One or more embodiments relates to a method of producing an MCrAlY bond coat comprising an MCrAlY layer in contact with a Y—Al2O3 layer. The MCrAlY layer is comprised of a γ-M solid solution, a β-MAl intermetallic phase, and Y-type intermetallics. The Y—Al2O3 layer is comprised of Yttrium atoms coordinated with oxygen atoms comprising the Al2O3 lattice. The method comprises depositing an MCrAlY material on a substrate, applying an Y2O3 paste, and heating the substrate in a non-oxidizing atmosphere at a temperature between 400-1300° C. for a time sufficient to generate the Y—Al2O3 layer. Both the MCrAlY layer and the Y—Al2O3 layer have a substantial absence of Y2O3, YAG, and YAP phases.
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