Ni-base super alloy

US9828657B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9828657-B2
Application numberUS-201515512272-A
CountryUS
Kind codeB2
Filing dateSep 28, 2015
Priority dateSep 29, 2014
Publication dateNov 28, 2017
Grant dateNov 28, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

There is provided an Ni-base super alloy which is used for airplane engines and gas turbines for power generation and has favorable mechanical properties at high temperature. The Ni-base super alloy contains 0.001 to 0.1 mass % of C, 1.0 to 4.0 mass % of Al, 2.0 to 4.5 mass % of Ti, 12.0 to 18.0 mass % of Cr, 11.1 to 18.0 mass % of Co, 1.2 to 12.0 mass % of Fe, 1.5 to 6.5 mass % of Mo, 0.5 to 6.0 mass % of W, 0.1 to 3.0 mass % of Nb, 0.001 to 0.05 mass % of B, 0.001 to 0.1 mass % of Zr, and Ni and impurities as a remainder.

First claim

Opening claim text (preview).

The invention claimed is: 1. An Ni-base super alloy comprising 0.001 to 0.100 mass % of C, 1.0 to 4.0 mass % of Al, 2.0 to 4.5 mass % of Ti, 12.0 to 18.0 mass % of Cr, 11.1 to 18.0 mass % of Co, 1.2 to 12.0 mass % of Fe, 1.5 to 6.5 mass % of Mo, 0.5 to 6.0 mass % of W, 0.1 to 3.0 mass % of Nb, 0.001 to 0.050 mass % of B, 0.001 to 0.100 mass % of Zr, 0.02 mass % or less of Mg, and Ni and impurities as a remainder, wherein the Ni-base super alloy has a composition satisfying (Ti+0.5Nb)/Al being 1.0 to 3.5 mass % and Mo+0.5 W being 3.5 to 7.0 mass %, and the length of twin crystal boundaries is 50% or more with respect to a sum of the length of twin crystal boundaries and the length of crystal grain boundaries.

Assignees

Inventors

Classifications

  • of nickel or cobalt or alloys based thereon · CPC title

  • C22C19/056Primary

    with the maximum Cr content being at least 10% but less than 20% · CPC title

  • with chromium · 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

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What does patent US9828657B2 cover?
There is provided an Ni-base super alloy which is used for airplane engines and gas turbines for power generation and has favorable mechanical properties at high temperature. The Ni-base super alloy contains 0.001 to 0.1 mass % of C, 1.0 to 4.0 mass % of Al, 2.0 to 4.5 mass % of Ti, 12.0 to 18.0 mass % of Cr, 11.1 to 18.0 mass % of Co, 1.2 to 12.0 mass % of Fe, 1.5 to 6.5 mass % of Mo, 0.5 to 6…
Who is the assignee on this patent?
Hitachi Metals Ltd
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 Nov 28 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).