Method For Producing An Anticorrosion Coating
US-2015376420-A1 · Dec 31, 2015 · US
Lightweight and corrosion resistant abradable coating
US9528008B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9528008-B2 |
| Application number | US-201314771893-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 30, 2013 |
| Priority date | Mar 7, 2013 |
| Publication date | Dec 27, 2016 |
| Grant date | Dec 27, 2016 |
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Abstract
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An abradable coating for application to a gas turbine engine part is formed from a titanium aluminide alloy, a filler material, and porosity. The coating may be applied to a part such as a casing made from a titanium alloy.
First claim
Opening claim text (preview).
What is claimed is: 1. An abradable coating composition for application to a gas turbine engine part, said abradable coating composition comprising a titanium aluminide alloy wherein said titanium aluminide alloy comprises from 35 to 55 at % titanium, from 45 to 65 at % aluminum, from 1.0 to 3.0 at % chromium, and from 1.0 to 5.0 at % nickel, a filler material, and porosity. 2. The abradable coating composition according to claim 1 , wherein said titanium aluminide alloy is present in an amount from 25 to 45 vol %. 3. The abradable coating composition according to claim 1 , wherein said porosity is from 1% to 25% by volume. 4. The abradable coating composition according to claim 1 , wherein said porosity is from 1% to 10% by volume. 5. The abradable coating composition according to claim 1 , wherein said filler and said porosity are present in an amount of at least 33 vol %. 6. The abradable coating composition according to claim 1 , wherein said filler and said porosity are present in an amount in the range of from 50 to 75 vol %. 7. The abradable coating composition according to claim 1 , wherein said filler and said porosity are present in an amount in the range of from 60 to 70 vol %. 8. The abradable coating composition according to claim 1 , wherein said filler is a soft or friable filler material. 9. The abradable coating composition according to claim 1 , wherein said filler is hexagonal boron nitride. 10. A turbine engine component comprising: a substrate; an abradable coating applied to said substrate; and said abradable coating comprising a titanium aluminide alloy wherein said titanium aluminide alloy comprises from 35 to 55 at % titanium, from 45 to 65 at % aluminum, from 1.0 to 3.0 at % chromium, and from 1.0 to 5.0 at % nickel, a filler material, and porosity. 11. The turbine engine component according to claim 10 , wherein said titanium aluminide alloy is present in an amount from 25 to 45 vol %. 12. The turbine engine component according to claim 10 , wherein said porosity is up to 25% by volume. 13. The turbine engine component according to claim 10 , wherein said porosity is less than 10% by volume. 14. The turbine engine component according to claim 10 , wherein said filler and said porosity are present in an amount of at least 33 vol %. 15. The turbine engine component according to claim 10 , wherein said filler and said porosity are present in an amount in the range of from 50 to 75 vol %. 16. The turbine engine component according to claim 10 , wherein said filler and said porosity are present in an amount in the range of from 60 to 70 vol %. 17. The turbine engine component according to claim 10 , wherein said filler is a soft or friable filler material. 18. The turbine engine component according to claim 10 , wherein said filler is hexagonal boron nitride. 19. The turbine engine component according to claim 10 , wherein said substrate is formed from a titanium alloy. 20. The turbine engine component according to claim 10 , wherein said turbine engine component comprises a casing.
Assignees
Inventors
Classifications
Binary compounds of nitrogen with boron · CPC title
Metals · CPC title
Titanium · CPC title
Nickel · CPC title
Aluminium · CPC title
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Frequently asked questions
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- What does patent US9528008B2 cover?
- An abradable coating for application to a gas turbine engine part is formed from a titanium aluminide alloy, a filler material, and porosity. The coating may be applied to a part such as a casing made from a titanium alloy.
- Who is the assignee on this patent?
- United Technologies Corp
- What technology area does this patent fall under?
- Primary CPC classification C09D5/08. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 27 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).