Heat-resistant superalloy

US2016201166A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016201166-A1
Application numberUS-201615079601-A
CountryUS
Kind codeA1
Filing dateMar 24, 2016
Priority dateNov 19, 2009
Publication dateJul 14, 2016
Grant date

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Abstract

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A heat-resistant superalloy having chromium, aluminum, cobalt, titanium, and ruthenium added thereto as main components, and having a subcomponent(s) optionally added thereto, the remainder, excluding the main components and the subcomponent(s), comprising nickel and an impurity inevitably contained, wherein the amount of the chromium added is 2 to 25% by mass, the amount of the aluminum added is 0.2 to 7% by mass, the amount of the cobalt added is 19.5 to 55% by mass, the amount of the titanium added is [0.17×(% by mass for cobalt-23)+3] to [0.17×(% by mass for cobalt-20)+7]% by mass (with the proviso that the amount of the titanium added is 5.1% by mass or more), and the amount of the ruthenium added is 0.1 to 10% by mass.

First claim

Opening claim text (preview).

1 - 12 . (canceled) 13 . A method for forging a heat-resistant superalloy comprising forging the heat-resistant superalloy at about 1100° C., wherein the heat-resistant superalloy comprises chromium, aluminum, cobalt, titanium, and ruthenium as main components, optionally a subcomponent(s), and a remainder, excluding the main components and the subcomponent(s), of nickel and an inevitable impurity, wherein an amount of the chromium is 2 to 25% by mass, an amount of the aluminum is 0.2 to 7% by mass, an amount of the cobalt is 19.5 to 55% by mass, an amount of the titanium is [0.17×(% by mass for cobalt-23)+3] to [0.17×(% by mass for cobalt-20)+7]% by mass, with the proviso that the amount of the titanium is 5.1% by mass or more, and an amount of the ruthenium is 0.1 to 10% by mass. 14 . The method according to claim 13 , wherein a turbine disk is formed by forging the heat-resistant superalloy at about 1100° C. 15 . A heat-resistant superalloy comprising chromium, aluminum, cobalt, titanium, and ruthenium as main components, optionally a subcomponent(s), and a remainder, excluding the main components and the subcomponent(s), of nickel and an inevitable impurity, wherein an amount of the chromium is 2 to 25% by mass, an amount of the aluminum is 0.2 to 7% by mass, an amount of the cobalt is 19.5 to 55% by mass, an amount of the titanium is [0.17×(% by mass for cobalt-23)+3] to [0.17×(% by mass for cobalt-20)+7]% by mass, with the proviso that the amount of the titanium is 5.1% by mass or more, and an amount of the ruthenium is 0.1 to 10% by mass, and wherein a turbine disk is produced by high-temperature forging the heat-resistant superalloy at about 1100° C.

Assignees

Inventors

Classifications

  • Nickel- or cobalt-based alloys · CPC title

  • Ruthenium · CPC title

  • discs, e.g. disc wheels · CPC title

  • Blade-carrying members, e.g. rotors (rotors of non-bladed type F01D1/34; stators F01D9/00 {; selecting particular materials F01D5/28}) · CPC title

  • C22C19/055Primary

    with the maximum Cr content being at least 20% but less than 30% · CPC title

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What does patent US2016201166A1 cover?
A heat-resistant superalloy having chromium, aluminum, cobalt, titanium, and ruthenium added thereto as main components, and having a subcomponent(s) optionally added thereto, the remainder, excluding the main components and the subcomponent(s), comprising nickel and an impurity inevitably contained, wherein the amount of the chromium added is 2 to 25% by mass, the amount of the alum…
Who is the assignee on this patent?
Nat Inst For Materials Science
What technology area does this patent fall under?
Primary CPC classification C22C19/055. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu Jul 14 2016 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).