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US 11,828,196 B2Granted
Gas turbine engine article with serpentine groove for coating interlock
AssigneeRtx Corporation
InventorsZhigang Wang, Tahany El-Wardany, Xia Tang, Gajawalli V. Srinivasan, Anthony G. Ruglio, Xiaomei Fang
Life of this patent
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Abstract
A gas turbine engine article includes a substrate that has a pre-bond surface that includes a serpentine groove. A coating is disposed on the pre-bond surface and mechanically interlocks with the serpentine groove.
Claims20
A gas turbine engine article comprising:
- a substrate including a pre-bond surface having a serpentine groove, the serpentine groove being of continuous length from a first groove end to a second groove end, the serpentine groove having a groove floor, and the groove floor includes dimples that are spaced apart from each other along the continuous length;
- and
- a coating disposed on the surface and mechanically interlocking with the serpentine groove.
A gas turbine engine comprising:
- a compressor section;
- a combustor in fluid communication with the compressor section;
- and
- a turbine section in fluid communication with the combustor, the turbine section including articles that each comprise:
- a substrate including a pre-bond surface having a serpentine groove, the serpentine groove having a sine wave profile, and
- a coating disposed on the pre-bond surface and mechanically interlocking with the serpentine groove.
3 more elements
A gas turbine engine article comprising:
- a substrate including a pre-bond surface having a serpentine groove, the pre-bond surface having a Young's contact angle θY of approximately 60° and a fraction of the pre-bond surface wetted versus unwetted is at least 0.7;
- and
- a coating disposed on the surface and mechanically interlocking with the serpentine groove.
Dependencies are inferred from the claim text.