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US 2016/0108509 A1Published application
Turbine blade coating composition and method thereof
AssigneeGeneral Electric Company
InventorsKrishnamurthy Anand, Surinder Singh Pabla, Eklavya Calla
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Abstract
A composition for a reinforced metal matrix coating, and a method of preparing and coating the composition. The composition includes a plurality of sacrificial metallic binder particles that is anodic with respect to a base substrate, and a plurality of hard particles.
Claims20
A composite comprising:
- a base substrate;
- and
- a coating comprising a plurality of hard particles and a plurality of sacrificial metallic binder particles on a surface of the base substrate, the sacrificial metallic binder particles being anodic with respect to the base substrate;
- wherein the coating has an electrochemical potential difference of at least about 50 mV with respect to the base substrate.
1 more element
A method of preparing a feedstock powder comprising:
- preparing a plurality of sacrificial metallic binder particles;
- preparing a plurality of hard particles;
- blending the sacrificial metallic binder particles and the hard particles together in a liquid medium to bond the sacrificial metallic binder particles and the hard particles together, and produce a plurality of bonded particles;
- separating the plurality of bonded particles from the liquid medium to produce a feedstock powder, and
- drying the feedstock powder.
2 more elements
A method of coating a base substrate comprising:
- preparing a feedstock powder comprising a plurality of sacrificial metallic binder particles and a plurality of hard particles;
- and
- spraying a base substrate with the feedstock powder to form a coating on a surface of the base substrate;
- wherein the coating has an electrochemical potential difference of at least about 50 mV with respect to the base substrate.
1 more element
Dependencies are inferred from the claim text.