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US 10,525,529 B2Granted
Corrosion-resistant aluminum-based abradable coatings
AssigneeUnited Technologies Corporation
InventorsPantcho P. Stoyanov, Christopher W. Strock, Thomas J. Watson
Life of this patent
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Abstract
A coated article comprising: a substrate; and a coating on the substrate comprising: a metallic matrix comprising, by weight: Al as a largest constituent; 3.0-6.0 Cr; 1.5-4.0 Mn; 0.1-3.5 Co; and 0.3-2.0 Zr; and a filler and optionally porosity.
Claims25
A coated article comprising:
- a substrate;
- and
- a coating on the substrate comprising:
- a metallic matrix having an icosahedral phase (I-phase) and comprising, by weight percent:
- Al as a largest constituent;
- 3.0-6.0 Cr;
- 1.5-4.0 Mn;
- 0.1-3.5 Co;
- and
- 0.3-2.0 Zr;
- and
- a filler and optionally porosity.
9 more elements
A coated article comprising:
- a substrate;
- and
- a coating on the substrate comprising:
- a metallic matrix comprising, by weight percent:
- Al as a largest constituent;
- 3.0-6.0 Cr;
- 1.5-4.0 Mn;
- 0.1-3.5 Co;
- and
- 0.3-2.0 Zr, wherein, in the matrix, in weight percent, no additional individual elemental content exceeds 1.0;
- and
- a filler and optionally porosity.
9 more elements
A coated article comprising:
- a substrate;
- and
- a coating on the substrate comprising:
- a metallic matrix comprising, by weight percent:
- Al as a largest constituent;
- 3.0-6.0 Cr;
- 1.5-4.0 Mn;
- 0.1-3.5 Co;
- and
- 0.3-2.0 Zr;
- and
- a filler and optionally porosity wherein a combined content, by volume of the coating is:
- 20-40% said matrix;
- and
- 60-80% said filler and optional porosity.
12 more elements
A blade outer airseal comprising:
- a substrate;
- and
- a coating on the substrate comprising:
- a metallic matrix comprising, by weight percent:
- Al as a largest constituent;
- 3.0-6.0 Cr;
- 1.5-4.0 Mn;
- 0.1-3.5 Co;
- and
- 0.3-2.0 Zr.
7 more elements
Dependencies are inferred from the claim text.