Component repair using brazed surface textured superalloy foil
US-2015375346-A1 · Dec 31, 2015 · US
Hot-forgeable Ni-based superalloy excellent in high temperature strength
US9738953B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9738953-B2 |
| Application number | US-201414167370-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 29, 2014 |
| Priority date | Jul 12, 2013 |
| Publication date | Aug 22, 2017 |
| Grant date | Aug 22, 2017 |
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Abstract
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The present invention provides a hot-forgeable Ni-based superalloy excellent in high temperature strength, including, in terms of % by mass: C: more than 0.001% and less than 0.100%, Cr: 11.0% or more and less than 19.0%, Co: 0.5% or more and less than 22.0%, Fe: 0.5% or more and less than 10.0%, Si: less than 0.1%, Mo: more than 2.0% and less than 5.0%, W: more than 1.0% and less than 5.0%, Mo+½W: 2.5% or more and less than 5.5%, S: 0.010% or less, Nb: 0.3% or more and less than 2.0%, Al: more than 3.00% and less than 6.50%, and Ti: 0.20% or more and less than 2.49%, with the balance being Ni and unavoidable impurities, in which (Ti/Al)×10 is 0.2 or more and less than 4.0 in terms of atomic ratio, and in which Al+Ti+Nb is 8.5% or more and less than 13.0% in terms of atomic %.
First claim
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What is claimed is: 1. A hot-forgeable Ni-based superalloy, comprising, in terms of % by mass: C: more than 0.001% and less than 0.100%, Cr: 11.0% or more and less than 19.0%, Co: 6.5% or more and less than 22.0%, Fe: 0.5% or more and less than 10.0%, Si: less than 0.1%, Mo: more than 2.0% and less than 5.0%, W: more than 1.0% and less than 5.0%, Mo+½W: 2.5% or more and less than 5.5%, S: 0.010% or less, Nb: 0.3% or more and less than 2.0%, Al: more than 3.00% and less than 6.50%, and Ti: 0.20% or more and less than 2.49%, with the balance being Ni and unavoidable impurities, wherein (Ti/Al)×10 is 0.2 or more and less than 4.0 in terms of atomic ratio, wherein Al+Ti+Nb is 8.5% or more and less than 13.0% in terms of atomic %; and wherein the hot-forgeable Ni-based superalloy has a γ′ amount of from 34 mol % to 45 mol %; and the hot-forgeable Ni-based superalloy has a solid solution temperature of γ′ of from 1,020° C. to 1,080° C. 2. The hot-forgeable Ni-based superalloy according to claim 1 , wherein: Fe: 1.0% or more and less than 10.0%. 3. The hot-forgeable Ni-based superalloy according to claim 2 , further comprising one or more species selected from, in terms of % by mass: B: 0.0001% or more and less than 0.03%, and Zr: 0.0001% or more and less than 0.1%. 4. The hot-forgeable Ni-based superalloy according to claim 3 , wherein, in terms of % by mass: P: less than 0.020%, and N: less than 0.020%. 5. The hot-forgeable Ni-based superalloy according to claim 4 , further comprising one or more species selected from, in terms of % by mass: Mg: 0.0001% or more and less than 0.030%, Ca: 0.0001% or more and less than 0.030%, and REM: from 0.0001% to 0.200%. 6. The hot-forgeable Ni-based superalloy according to claim 3 , further comprising one or more species selected from, in terms of % by mass: Mg: 0.0001% or more and less than 0.030%, Ca: 0.0001% or more and less than 0.030%, and REM: from 0.0001% to 0.200%. 7. The hot-forgeable Ni-based superalloy according to claim 2 , wherein, in terms of % by mass: P: less than 0.020%, and N: less than 0.020%. 8. The hot-forgeable Ni-based superalloy according to claim 7 , further comprising one or more species selected from, in terms of % by mass: Mg: 0.0001% or more and less than 0.030%, Ca: 0.0001% or more and less than 0.030%, and REM: from 0.0001% to 0.200%. 9. The hot-forgeable Ni-based superalloy according to claim 2 , further comprising one or more species selected from, in terms of % by mass: Mg: 0.0001% or more and less than 0.030%, Ca: 0.0001% or more and less than 0.030%, and REM: from 0.0001% to 0.200%.
Assignees
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Classifications
- C22C19/056Primary
with the maximum Cr content being at least 10% but less than 20% · CPC title
with the maximum Cr content being at least 20% but less than 30% · CPC title
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Frequently asked questions
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- What does patent US9738953B2 cover?
- The present invention provides a hot-forgeable Ni-based superalloy excellent in high temperature strength, including, in terms of % by mass: C: more than 0.001% and less than 0.100%, Cr: 11.0% or more and less than 19.0%, Co: 0.5% or more and less than 22.0%, Fe: 0.5% or more and less than 10.0%, Si: less than 0.1%, Mo: more than 2.0% and less than 5.0%, W: more than 1.0% and less than 5.0%, Mo…
- Who is the assignee on this patent?
- Osaki Mototsugu, Ueta Shigeki, Okajima Takuma, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification C22C19/056. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 22 2017 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).