Claims
- 1. An aluminum alloy consisting essentially of the formula Al.sub.bal TM.sub.d Si.sub.e wherein "TM" is at least one element selected from the group consisting of Fe, Co, Ti, V, Ni, Zr, Cu, Mg, and Mn, "d" ranges from about 2-20 wt %, "e" ranges from about 2.1-20 wt %, and the balance is aluminum plus incidental impurities, said alloy having been rapidly solidified at a quench rate of at least about 10.sup.6 K./sec from a carbothermically reduced aluminous material containing oxides of Al, Si and transition metals, and having a microstructure which is at least about 50% composed of a microeutectic and/or microcellular structure.
- 2. An alloy as recited in claim 1, said alloy consisting essentially of the formula Al.sub.bal Fe.sub.a Si.sub.b T.sub.c, wherein "T" is one or more elements selected from the group consisting of Ni, Co, Ti, V, Zr, Cu and Mn, "a" ranges from about 2-20 wt %, "b" ranges from about 2.1-20 wt %, "c" ranges from about 0.2-10 wt %, and the balance is aluminum and incidental impurities.
- 3. An alloy as recited in claim 2, wherein said alloy is capable of providing a ductility of at least about 5% elongation to fracture and a tensile strength of at least about 350 MPa when particles of said alloy are consolidated together to form an article of manufacture.
- 4. A method as recited in claim 3, in which said alloy consists essentially of the formula Al.sub.bal Fe.sub.a Si.sub.b T.sub.c, wherein "T" is one or more elements selected from the group consisting of Ni, Co, Ti, V, Zr, Cu and Mn, "a" ranges from about 2-20 wt %, "b" ranges from about 2.1-20 wt %, "c" ranges from about 0.2-10 wt %, and the balance is aluminum and incidental impurities.
- 5. A method as recited in claim 4, wherein said alloy is produced by adding selected amounts of Al, Fe, Si and T group elements to said carbothermically reduced material.
- 6. An alloy as recited in claim 1, wherein said alloy has a microstructure which is at about 90% composed of a microeutectic and/or microcellular structure.
- 7. An alloy as recited in claim 1, wherein the microstructure is approximately 100% composed of a microeutectic and/or microcellular.
- 8. An alloy as recited in claim 2, wherein the microstructure is at least about 90% composed of a microeutectic and/or microcellular structure.
- 9. An alloy as recited in claim 2, wherein the microstructure is approximately 100% composed of a microeutectic and/or microcellular structure.
- 10. An alloy as recited in claim 1, said alloy having been rapidly solidified on a quench surface moving at a speed of at least about 1200 to 2750 meters per minute to produce a rapidly solidified alloy in which the microstructure is at least about 90% composed of a microeutectic and/or microcellular structure.
- 11. An alloy as recited in claim 1, said alloy having been rapidly solidified on a quench surface in the presence of a protective gas selected from the group consisting of carbon monoxide, helium, nitrogen, and argon, said gas having a lower density than air and said quench surface moving at a speed of at least about 1200 to 2750 meters per minute to produce a rapidly solidified alloy in which the microstructure is approximately 100% composed of a microeutectic and/or microcellular structure.
Parent Case Info
This application is a continuation of application Ser. No. 639,300, filed Aug. 10, 1984, now U.S. Pat. No. 4,734,130.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4734130 |
Adam |
Mar 1988 |
|