[특허]2xxx aluminum alloys, and methods for producing the same

2xxx aluminum alloys, and methods for producing the same 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C22C-021/12 C22F-001/057 B22D-021/04 B22D-011/00 B62D-029/00 C22F-001/00
출원번호	US-0473141 (2014-08-29)
등록번호	US-9926620 (2018-03-27)
발명자 / 주소	Kamat, Rajeev G. Newman, John M. Sawtell, Ralph R. Lin, Jen C.
출원인 / 주소	Arconic Inc.
대리인 / 주소	Greenberg Traurig, LLP
인용정보	피인용 횟수 : 0 인용 특허 : 52

초록 ▼

New 2xxx aluminum alloy bodies and methods of producing the same are disclosed. The new 2xxx aluminum alloy bodies may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new 2xxx aluminum alloy bodies may

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1. A method comprising: (a) receiving an aluminum alloy body, wherein the aluminum alloy body comprises 0.5 to 8.0 wt. % copper, wherein the copper is the predominate alloying element of the aluminum alloy body other than aluminum, wherein the aluminum alloy body was prepared by solutionizing, and then cold working, wherein the cold working induced at least 25% cold work in the aluminum alloy body, and then first thermally treating to achieve a first predetermined selected condition of the aluminum alloy body;(b) second thermally treating the aluminum alloy body; (i) wherein the second thermally treating step is accomplished to achieve a second predetermined selected condition of the aluminum alloy body; and(ii) wherein the combination of the at least 25% cold work, the first thermally treating, and the second thermally treating are accomplished such that the aluminum alloy body realizes a higher tensile yield strength over a reference version of the aluminum alloy body in the T87 temper. 2. The method of claim 1, comprising: forming the aluminum alloy body into a predetermined shaped product. 3. The method of claim 2, wherein the forming occurs during the second thermally treating step. 4. The method of claim 1, wherein the first predetermined selected condition is a predetermined first strength and the second predetermined selected condition is a predetermined second strength. 5. The method of claim 4, wherein the predetermined second strength is higher than the predetermined first strength. 6. The method of claim 1, wherein the receiving step (a) and the second thermally treating step (b) are performed by an automotive manufacturer or an aerospace manufacturer. 7. The method of claim 6, wherein the cold working and the first thermally treating were completed by a supplier of the aluminum alloy body prior to the receiving step (a). 8. The method of claim 7, comprising supplying, by the supplier, the aluminum alloy body to the aerospace manufacturer after the first thermally treating and the cold working.

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