Angled brush seal and gas turbine engine component combination
US-11879340-B1 · Jan 23, 2024 · US
Superalloy turbomachine part with an optimized hafnium content
US2023076728A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023076728-A1 |
| Application number | US-202117797920-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 2, 2021 |
| Priority date | Feb 6, 2020 |
| Publication date | Mar 9, 2023 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A turbomachine part includes a nickel-based superalloy substrate including, in mass content, 5.0% to 8.0% cobalt, 6.5% to 10% chromium, 0.5% to 2.5% molybdenum, 5.0% to 9.0% tungsten, 6.0% to 9.0% tantalum, 4.5% to 5.8% aluminum, hafnium in a mass content between 500 ppm and 1100 ppm, and optionally including niobium in a mass content less than or equal to 1.5%, and optionally at least one of carbon, zirconium and boron each in a mass content less than or equal to 100 ppm, the remainder being composed of nickel and unavoidable impurities.
First claim
Opening claim text (preview).
1 . A turbomachine part comprising a nickel-based superalloy substrate comprising, in mass content, 5.0% to 8.0% cobalt, 6.5% to 10% chromium, 0.5% to 2.5% molybdenum, 5.0% to 9.0% tungsten, 6.0% to 9.0% tantalum, 4.5% to 5.8% aluminum, hafnium in a mass content between 500 ppm and 1100 ppm, and optionally comprising niobium in a mass content less than or equal to 1.5%, and optionally at least one of carbon, zirconium and boron each in a mass content less than or equal to 100 ppm, the remainder being composed of nickel and unavoidable impurities. 2 . The turbomachine part according to claim 1 , wherein the hafnium mass content in the superalloy is between 670 ppm and 780 ppm. 3 . The turbomachine part according to claim 1 , wherein the superalloy defines an outer surface of the part. 4 . The turbomachine part according to claim 1 , comprising: a substrate formed by the nickel based superalloy, and a β-structured nickel aluminide coating present on the substrate. 5 . The turbomachine part according to claim 4 , wherein the β-structured nickel aluminide coating is a β-structured NiAl coating or β-structured NiPtAl coating. 6 . The turbomachine part according to claim 4 , wherein a thermal barrier is present on the β-structured nickel aluminide coating. 7 . The turbomachine part according to claim 1 , wherein the superalloy is monocrystalline. 8 . The turbomachine part according to claim 1 , wherein said part is a turbomachine vane, a turbomachine distributor, a turbomachine turbine ring, or a turbomachine combustion chamber. 9 . A turbomachine comprising a part according to claim 1 .
Assignees
Inventors
Classifications
with the maximum Cr content being less 10% · CPC title
Metal-aluminide intermetallic compounds · CPC title
Alloys · CPC title
Superalloys · CPC title
- F01D25/005Primary
Selecting particular materials · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2023076728A1 cover?
- A turbomachine part includes a nickel-based superalloy substrate including, in mass content, 5.0% to 8.0% cobalt, 6.5% to 10% chromium, 0.5% to 2.5% molybdenum, 5.0% to 9.0% tungsten, 6.0% to 9.0% tantalum, 4.5% to 5.8% aluminum, hafnium in a mass content between 500 ppm and 1100 ppm, and optionally including niobium in a mass content less than or equal to 1.5%, and optionally at least one of c…
- Who is the assignee on this patent?
- Safran Aircraft Engines, Safran, Centre Nat Rech Scient, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification F01D25/005. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Mar 09 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).