Ni-cr alloy member comprising additively manufactured article, method for manufacturing ni-cr alloy member, and product using ni-cr alloy member
US-2025188572-A1 · Jun 12, 2025 · US
High strength and high corrosion-resistance nickle-based alloy with superior hot forgeability
US10450635B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10450635-B2 |
| Application number | US-201716069379-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 22, 2017 |
| Priority date | Feb 24, 2016 |
| Publication date | Oct 22, 2019 |
| Grant date | Oct 22, 2019 |
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Abstract
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Provided is a high strength and high corrosion-resistance Ni-based alloy having excellent hot forgeability, which is suitable for a member for oil drilling, the Ni-based alloy having a composition consisting of, by mass %, 42.1 to 45.5% of Cr, 0.5 to 2.5% of Nb, 1.2 to 2.0% of Ti, 0.0001 to 0.0090% of Mg, 0.001 to 0.040% of N, 0.01 to 0.50% of Mn, 0.001 to 0.050% of Si, 0.01 to 1.00% of Fe, 0.01 to 2.50% of Co, 0.001 to less than 0.500% of Cu, 0.001 to 0.050% of Al, 0.005 to less than 0.100% of V, 0.0001 to 0.0100% of B, 0.001 to 0.050% of Zr, and the balance of Ni with inevitable impurities, and the composition preferably further consists of any one of 0.1 to 1.5% of Mo, 0.1 to 1.5% of W, 0.001 to less than 0.050% of Ca, and 0.001 to less than 0.050% of Ta.
First claim
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The invention claimed is: 1. A Ni-based alloy suitable for hot forgeability, the Ni-based alloy having a composition consisting of, by mass %, 42.1 to 45.5% of Cr, 0.5 to 2.5% of Nb, 1.2 to 2.0% of Ti, 0.0001 to 0.0090% of Mg, 0.001 to 0.040% of N, 0.01 to 0.50% of Mn, 0.001 to 0.050% of Si, 0.01 to 1.00% of Fe, 0.01 to 2.50% of Co, 0.001 to less than 0.500% of Cu, 0.001 to 0.050% of Al, 0.005 to less than 0.100% of V, 0.0001 to 0.0100% of B, 0.001 to 0.050% of Zr, optionally 0.1 to 1.5% of Mo, optionally 0.1 to 1.5% of W, optionally 0.001 to less than 0.050% of Ca, optionally 0.001 to less than 0.050% of Ta, and the balance of Ni with inevitable impurities. 2. A member for oil drilling comprising the Ni-based alloy according to claim 1 . 3. The Ni-based alloy according to claim 1 , wherein molybdenum is present in an amount of 0.1 to 1.5% by mass and/or tungsten is present in an amount of 0.1 to 1.5% by mass. 4. The Ni-based alloy according to claim 3 , wherein calcium is present in an amount of 0.001 to less than 0.050% by mass. 5. The Ni-based alloy according to claim 3 , wherein tantalum is present in an amount of 0.001 to less than 0.050% by mass. 6. A member for oil drilling comprising the Ni-based alloy according to claim 3 . 7. The Ni-based alloy according to claim 1 , wherein calcium is present in an amount of 0.001 to less than 0.050% by mass. 8. The Ni-based alloy according to claim 7 , wherein tantalum is present in an amount of 0.001 to less than 0.050% by mass. 9. A member for oil drilling comprising the Ni-based alloy according to claim 7 . 10. The Ni-based alloy according to claim 1 , wherein tantalum is present in an amount of 0.001 to less than 0.050% by mass. 11. A member for oil drilling comprising the Ni-based alloy according to claim 10 .
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- C22C19/052Primary
with the maximum Cr content being at least 40% · CPC title
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- What does patent US10450635B2 cover?
- Provided is a high strength and high corrosion-resistance Ni-based alloy having excellent hot forgeability, which is suitable for a member for oil drilling, the Ni-based alloy having a composition consisting of, by mass %, 42.1 to 45.5% of Cr, 0.5 to 2.5% of Nb, 1.2 to 2.0% of Ti, 0.0001 to 0.0090% of Mg, 0.001 to 0.040% of N, 0.01 to 0.50% of Mn, 0.001 to 0.050% of Si, 0.01 to 1.00% of Fe, 0.0…
- Who is the assignee on this patent?
- Hitachi Metals Ltd
- What technology area does this patent fall under?
- Primary CPC classification C22C19/052. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 22 2019 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).