Patent AU-2013203144-B2 (AU)
Title: Improved aluminum-lithium alloys, and methods for producing the same
Inventor: KAMAT RAJEEV
IPC: C22C21/00
Filed: 2013-02-27
Granted: 2016-04-14
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date W O 2013/172912 A2 21 November 2013 (21.11.2013) W I PO I P C T (51) International Patent Classification: (71) Applicant: ALCOA INC. [US/US]; Alcoa Corporate Cen C22C 21/00 (2006.01) B22D 21/04 (2006.01) ter, 201 Isabella Street, Pittsburgh, Pennsylvania 15212 (21) International Application Number: 5858 (US). PCT/US2013/027858 (72) Inventors: KAMAT, Rajeev; 5124 Cypress Drive, Murry (22) International Filing Date: sville, Pennsylvania 15668 (US). NEWMAN, John M.; (2 Interntiona Fi Date:2.201) 5937 Graybrooke Drive, Export, Pennsylvania 15632 (US). 27 February 2013 (27.02.2013) SAWTELL, Ralph R.; 466 Four Lakes Drive, Gibsonia, (25) Filing Language: English Pennsylvania 15044 (US). LIN, Jen C.; 1001 Alton Court, Export, Pennsylvania 15632 (US). BOYSEL, Darl G.; (26) Publication Language: English 1061 Manor Vue Drive, Delmont, Pennsylvania 15626 (30) Priority Data: (US). BRAY, Gary H.; 3816 Buckingham Court, Murrys 61/608,075 7 March 2012 (07.03.2012) US ville, Pennsylvania 15668 (US). BRYANT, James Daniel; 5089 Cypress Drive, Murrysville, Pennsylvania 15668 (US). CONNER, Brett P.; 4717 Pembroke Court, Allison Park, Pennsylvania 15101 (US). GRECO, Mario; 104 [Continued on next page] (54) Title: IMPROVED ALUMINUM-LITHIUM ALLOYS, AND METHODS FOR PRODUCING THE SAME (57) Abstract: New Al-Li alloy bodies and methods of producing the same are dis Prepare Aluminum Alloy closed. The new Al-Li 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 Body For Post- treating. The new Al-Li alloy bodies may realize improved strength and other properties. Solutionizing Cold Work Cold Work Aluminum Alloy Body Thermally Treat Aluminum Alloy Body Optional Final - Treatment(s) FIG. 2a W O 2 0 13 /17 2 9 12 A 2 II |l ll l || | | || | |||||||||||||||||||I||||I||||||||||||||||||||||I||||I|||I| Snowberry Lane, Gibsonia, Pennsylvania 15044 (US). TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, IASELLA, Gino Norman; 1216 Applewood Drive, Gib- ZA, ZM, ZW. sonia, Pennsylvania 15044 (US). MCNEISH, David J.; (84) Designated States (unless otherwise indicated, for every 28 Saddlebrook Drive, Greensburg, Pennsylvania 15601 kind of regional protection available): ARIPO (BW, GH, (US). MURTHA, Shawn J.; 119 Aquillin Court, Irwin, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, Pennsylvania 15642 (US). RIOJA, Roberto J.; 4885 UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, Bulltown Road, Murrysville, Pennsylvania 15668 (US). TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, SULLIVAN, Shawn P.; 622 6th Street, Oakmont, EE, ES, Fl, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, Pennsylvania 15139 (US). LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, (74) Agents: BRIGGS, Heath J. et al.; Greenberg Traurig, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, LLP, c/o Alcoa Technical Center, 100 Technical Drive, GW, ML, MR, NE, SN, TD, TG). Alcoa Center, Pennsylvania 15069-0001 (US). Declarations under Rule 4.17: (81) Designated States (unless otherwise indicated, for every as to applicant's entitlement to apply for and be granted kind of national protection available): AE, AG, AL, AM, a patent (Rule 4.17(ii)) AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, as to the applicant's entitlement to claim the priority of DO, DZ, EC, EE, EG, ES, Fl, GB, GD, GE, GH, GM, the earlier application (Rule 4.17(iii)) GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, Published: KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, - without international search report and to be republished NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, upon receipt of that report (Rule 48.2(g)) RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH,