Metal treatment – Stock – Age or precipitation hardened or strengthened
Patent
1989-03-23
1993-11-09
Ramsey, Kenneth J.
Metal treatment
Stock
Age or precipitation hardened or strengthened
420533, 420552, C22C 2112
Patent
active
052598977
ABSTRACT:
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, TiB.sub.2, 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, TiB.sub.2, and mixtures thereof, and the balance essentially Al.
REFERENCES:
patent: 2381219 (1945-08-01), LeBaron
patent: 2915391 (1959-12-01), Criner
patent: 3306717 (1967-02-01), Lindstrand et al.
patent: 3346370 (1967-10-01), Jagaciak et al.
patent: 4526630 (1985-07-01), Field
patent: 4584173 (1986-04-01), Gray et al.
patent: 4588553 (1986-05-01), Evans et al.
patent: 4594222 (1986-06-01), Heck et al.
patent: 4603029 (1986-07-01), Quist et al.
patent: 4624717 (1986-11-01), Miller
patent: 4626409 (1986-12-01), Miller
patent: 4629505 (1986-12-01), Paris
patent: 4648913 (1987-03-01), Hunt et al.
patent: 4652314 (1987-03-01), Meyer
patent: 4661172 (1987-04-01), Skinner et al.
patent: 4752343 (1988-06-01), DuBost et al.
patent: 4758286 (1988-07-01), Dubost et al.
patent: 4772342 (1988-09-01), Polmear
patent: 4795502 (1989-01-01), Cho
patent: 4832910 (1989-05-01), Rioja et al.
patent: 4840683 (1989-06-01), Dubost
patent: 4848647 (1989-07-01), Gentry et al.
Aluminum Alloys: Structure & Properties, L. F. Mondolfo, Boston; Butterworth, 1976, pp. 502, 641, 706-707.
"Development of an Experimental Wrought Aluminum Alloy for Use of Elevated Temperatures", Polmear, Aluminum Alloys: Their Physical and Mechanical Properties, E. A. Stark, Jr., & T. H. Sanders, Jr., ed., vol. I. Conf. Proc. U. VA Jun. 15-20, 1986, pp. 661-674, Chameleon.
Marchive & Charue, "Processing & Properties" 4th International Aluminum Lithium Conf., Press. Champier, Dubost, Miannay & Sabetay eds., Proceedings of International Conference, Jun. 10-12, 1987, Pams, France, pp. 43-49.
"First Generation Products-2090" Bretz, Alithalite Alloys:1987 Update; Kar, Agrawal, & Quist, eds., Conference Proceedings of International Aluminum-Lithium Symposium, Los Angelos, Mar. 25-26, 1987, pp. 1-40.
Journal de Physique, vol. 48 No. 9, Sep. 1987, 4th International Aluminum Lithium Conference Jun. 10-12, 1987, Paris, R., edited by Champier et al., publ. by Editions de Physique. Miller et al.; "The Physical Metallurgy of Aluminum-Lithium-Copper-Magnesium-Zirconium Alloys 8090 and 8091"; pp. C3-139 thru C3-149.
Aluminum-Lithium Alloys II, Proceedings of the Second International Aluminum-Lithium Conference, Apr. 12-14, 1983, Monterey Calif., Stark et al., eds., Metallugurical Society of AIME. Kar et al., "Correlation of Microstructures Aging Treatments and Properties of Al-Li-Cu-Mg-Zr I/M and P/M Alloys", pp. 255-285.
Huang & Ardell, "Crystal Structure & Stability of T.sub.1 Percepitabs in aged Al-Li-Cu Alloys" Materials Science and Technology, Mar., 1987, vol. 3, pp. 176-188.
Silcock, "The Structural Ageing Characteristics of Aluminum-Copper-Lithium Alloys", Journal of the Institute of Metals, 1959-1960, vol. 88, pp. 357-364.
Aluminum Properties and Physical Metallurgy, Edition 1, 1984, Hatch, Editor; American Society for Metals, Ohio (U.S.), Chapter 5, "Metallurgy of Heat Treatment and general principles of precipitation hardening" pp. 134-139.
Welding Kaiser Aluminum, Edition 2, 1978, Kaiser Aluminum and Chemical Sales, Inc., Calif. (U.S.), Chapter 9, pp. 9-8-9-9.
Heubaum Frank H.
Kramer Lawrence S.
Langan Timothy J.
Pickens Joseph R.
Chin Gay
Martin Marietta Corporation
Mylius Herbert W.
Ramsey Kenneth J.
Winchell Bruce M.
LandOfFree
Ultrahigh strength Al-Cu-Li-Mg alloys does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ultrahigh strength Al-Cu-Li-Mg alloys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultrahigh strength Al-Cu-Li-Mg alloys will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1139864