FIELD: gas turbine component repairing methods.
SUBSTANCE: inventions group discloses a pre-sintered billet (114) and a method (100) for repairing a gas turbine component (102) made of a superalloy to obtain a connecting layer of a brazed assembly (116), which provides the component with additional thermal protection. The pre-sintered workpiece (114) is applied to the repair surface (110) of the turbine component (102) and heated to form a brazed assembly (116) containing a replacement protective coating (118) on the repair surface (110) while cooling the workpiece (114) and component (102) turbines. The preform (114) is formed from a mixture of tie layer powder and braze powder.
EFFECT: protective coating (118) exhibits excellent temperature and oxidation resistance, high adhesion to superalloy surfaces, and low wear over the life of the corresponding component (102).
10 cl, 8 dwg
| Title |
Year |
Author |
Number |
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2019 |
- Kulkarni, Anand A.
- Ozbaysal, Kazim
- Kamel, Ahmed
- Stoodt, Kyle I.
|
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- Kamel Akhmed
|
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2015 |
|
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|
RU2785029C1 |
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2018 |
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|
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|
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2012 |
- Belov, Vladimir, V.
- Belov, Irina
|
RU2627823C2 |
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- Kulkarni Anand A.
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|
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- Reinkensmeier, Ingo
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