Ni-Ir-BASED HEAT-RESISTANT ALLOY AND PROCESS FOR PRODUCING SAME
US-2017130310-A1 · May 11, 2017 · US
Ni-based heat-resistant alloy
US11066728B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11066728-B2 |
| Application number | US-201716471141-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 5, 2017 |
| Priority date | Dec 22, 2016 |
| Publication date | Jul 20, 2021 |
| Grant date | Jul 20, 2021 |
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- Title
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Abstract
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The present invention relates to a Ni-based heat-resistant alloy including Ir: 5.0 mass % or more and 50.0 mass % or less, Al: 1.0 mass % or more and 8.0 mass % or less, W: 5.0 mass % or more and 25.0 mass % or less, and balance Ni, having an L1 2 -structured γ′ phase present in the matrix, and including at least one of Zr: 0.01 mass % or more and 3.0 mass % or less and Hf: 0.01 mass % or more and 3.0 mass % or less. This Ni-based heat-resistant alloy has improved toughness over a conventional Ni-based heat-resistant alloy based on a Ni—Ir—Al—W-based alloy, and is also excellent in ambient-temperature strength.
First claim
Opening claim text (preview).
The invention claimed is: 1. A polycrystalline Ni-based heat-resistant alloy comprising Ir: 5.0 mass % or more and 50.0 mass % or less, Al: 1.0 mass % or more and 8.0 mass % or less, W: 5.0 mass % or more and 25.0 mass % or less, and balance Ni, having an L12-structured γ′ phase present in the matrix, and including at least one of Zr: 0.8 mass % or more and 2.0 mass % or less and Hf: 1.0 mass % or more and 2.0 mass % or less. 2. The polycrystalline Ni-based heat-resistant alloy according to claim 1 , further comprising C: 0.001 mass % or more and 0.5 mass % or less. 3. The polycrystalline Ni-based heat-resistant alloy according to claim 1 , comprising 1.2 mass % or more and 2.0 mass % or less of Zr. 4. The polycrystalline Ni-based heat-resistant alloy according to claim 1 , comprising 1.2 mass % or more and 2.0 mass % or less of Hf. 5. The polycrystalline Ni-based heat-resistant alloy according to claim 1 , comprising 1.0 mass % or more and 2.0 mass % or less of Zr and 1.0 mass % or more and 2.0 mass % or less of Hf. 6. The polycrystalline Ni-based heat-resistant alloy according to claim 1 , comprising at least one addition element selected from the following: B: 0.001 mass % or more and 0.1 mass % or less Co: 5.0 mass % or more and 20.0 mass % or less Cr: 1.0 mass % or more and 25.0 mass % or less Ta: 1.0 mass % or more and 10.0 mass % or less Nb: 1.0 mass % or more and 5.0 mass % or less Ti: 1.0 mass % or more and 5.0 mass % or less V: 1.0 mass % or more and 5.0 mass % or less Mo: 1.0 mass % or more and 5.0 mass % or less. 7. The polycrystalline Ni-based heat-resistant alloy according to claim 6 , comprising 1.0 mass % or more and 2.0 mass % or less of Zr and 1.0 mass % or more and 2.0 mass % or less of Hf. 8. The polycrystalline Ni-based heat-resistant alloy according to claim 6 , further comprising C: 0.001 mass % or more and 0.5 mass % or less. 9. The polycrystalline Ni-based heat-resistant alloy according to claim 8 , comprising 1.2 mass % or more and 2.0 mass % or less of Zr. 10. The polycrystalline Ni-based heat-resistant alloy according to claim 8 , comprising 1.0 mass % or more and 2.0 mass % or less of Zr and 1.0 mass % or more and 2.0 mass % or less of Hf.
Assignees
Inventors
Classifications
- C22C19/03Primary
based on nickel · CPC title
- C22C19/051Primary
and Mo or W · CPC title
Alloys containing less than 50% by weight of each constituent · CPC title
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working (apparatus for mechanical working of metal B21, B23, B24) · CPC title
of nickel or cobalt or alloys based thereon · CPC title
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Frequently asked questions
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- What does patent US11066728B2 cover?
- The present invention relates to a Ni-based heat-resistant alloy including Ir: 5.0 mass % or more and 50.0 mass % or less, Al: 1.0 mass % or more and 8.0 mass % or less, W: 5.0 mass % or more and 25.0 mass % or less, and balance Ni, having an L1 2 -structured γ′ phase present in the matrix, and including at least one of Zr: 0.01 mass % or more and 3.0 mass % or less and Hf: 0.01 mass % or more …
- Who is the assignee on this patent?
- Tohoku Techno Arch Co Ltd, Tanaka Precious Metal Ind
- What technology area does this patent fall under?
- Primary CPC classification C22C19/03. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 20 2021 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).