IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0327666
(1989-03-23)
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발명자
/ 주소 |
- Pickens Joseph R. (Beltsville MD) Heubaum Frank H. (Baltimore MD) Kramer Lawrence S. (Baltimore MD) Langan Timothy J. (Baltimore MD)
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| 출원인 / 주소 |
- Martin Marietta Corporation (Bethesda MD 02)
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| 인용정보 |
피인용 횟수 :
11 인용 특허 :
0 |
초록
▼
Aluminum-base alloys which are provided which possess highly desirable properties, such as relatively low density, high modulus, high strength/ductility combinations, strong natural aging response with and without prior cold work, higher artificially-aged strength than existing Al-Li alloys with and
Aluminum-base alloys which are provided which possess highly desirable properties, such as relatively low density, high modulus, high strength/ductility combinations, strong natural aging response with and without prior cold work, higher artificially-aged strength than existing Al-Li alloys with and without prior cold work, weldability, good cryogenic properties, and good elevated temperature properties. In one embodiment, aluminum-base alloys are provided having Al-Cu-Li-Mg compositions in the following ranges: 5.0-7.0 Cu, 0.1-2.5 Li, 0.05-4 Mg, 0.01-1.5 grain refiner selected from Zr, Cr, Mn, Ti, Hf, V, Nb, B, TiB2, and mixtures thereof, and the balance essentially Al. In another embodiment, aluminum-base alloys are provided having Al-Cu-Li-Mg compositions in the following ranges: 3.5-5.0 Cu, 0.8-1.8 Li, 0.25-1.0 Mg, 0.01-1.5 grain refiner selected from Zr, Cr, Mn, Ti, Hf, V, Nb, B, TiB2, and mixtures thereof, and the balance essentially Al.
대표청구항
▼
An aluminum-base alloy consisting essentially of from about 5.0 to 7.0 weight percent Cu, 0.1-2.5 weight percent Li, 0.05-4 weight percent Mg, 0.01-1.5 weight percent grain refiner selected from the group consisting of Zr, Cr, Mn, Ti, Hf, V, Nb, B, TiB2, and mixtures thereof, the balance aluminum an
An aluminum-base alloy consisting essentially of from about 5.0 to 7.0 weight percent Cu, 0.1-2.5 weight percent Li, 0.05-4 weight percent Mg, 0.01-1.5 weight percent grain refiner selected from the group consisting of Zr, Cr, Mn, Ti, Hf, V, Nb, B, TiB2, and mixtures thereof, the balance aluminum and incidental impurities, wherein the alloy in the solution heat treated, artificially aged condition possesses an ultimate tensile strength of greater than 75 ksi.
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