# US 10,119,184 B2 · High strength forged aluminum alloy products > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,119,184 B2 - Document ID: US10119184B2 - Status: Granted - Kind: B2 - Application number: 14/847,303 - Filed: 2015-09-08 - Published: 2015-12-31 - Granted: 2018-11-06 - Earliest claimed: 2010-04-20 - Assignees: Arconic Inc. - Applicants: Alcoa Inc. - Inventors: Dustin M. Bush; Edward L. Colvin; Roberto J. Rioja; Ralph R. Sawtell - Web page: https://patentgrep.com/patent/US10119184B2 ## CPC - C22C 21/16: with magnesium - C22C 21/10: with zinc as the next major constituent - C22C 21/12: with copper as the next major constituent - C22C 21/14: with silicon - C22F 1/04: of aluminium or alloys based thereon - C22F 1/053: of alloys with zinc as the next major constituent - C22F 1/057: of alloys with copper as the next major constituent - C22C: ALLOYS (treatment of alloys C21D, C22F) - C22F: CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS (surface treatment of metallic material involving at least one process provided for in class C23 and at least one process covered by this subclass, C23F17/00) ## Abstract High strength forged aluminum alloys and methods for producing the same are disclosed. The forged aluminum alloy products may have grains having a high aspect ratio in at least two planes, generally the L-ST and the LT-ST planes. The forged aluminum alloy products may also have a high amount of texture. The forged products may realize increased strength relative to conventionally prepared forged products of comparable product form, composition and temper. ## Claims ### Claim 1 A forged aluminum alloy product comprising: a crystalline microstructure having grains; wherein the grains include first type grains and second type grains; wherein the crystalline microstructure comprises from 5 vol. % to 50 vol. % of the first type grains; wherein the first type grains at least include representative first grains; wherein the representative first grains make up 60-90 vol. % of the first type grains; wherein the representative first grains have an average aspect ratio of from 3.5:1 to 20:1 in the LT-ST plane; wherein the representative first grains have an average aspect ratio of from 6:1 to 30:1 in the L-ST plane; and wherein at least portions of the forged aluminum alloy product have a sectional thickness of at least 1 inch; and wherein the aluminum alloy of the forged aluminum alloy product is a 2xxx aluminum alloy. ### Claim 2 (depends on 1) The forged aluminum alloy product of claim 1, wherein the representative first grains have an average aspect ratio of at least 7:1 in the L-ST plane. ### Claim 3 (depends on 1) The forged aluminum alloy product of claim 1, wherein the forged aluminum alloy product realizes a maximum ODF intensity of at least 30. ### Claim 4 (depends on 1) The forged aluminum alloy product of claim 1, wherein a (111) pole figure of the forged aluminum alloy product comprises a plurality of maximum intensity representations, and wherein the maximum intensity representations are substantially symmetrical. ### Claim 5 (depends on 1) The forged aluminum alloy product of claim 1, wherein the forged aluminum alloy product realizes a longitudinal (L) tensile yield strength of at least 72 ksi. ### Claim 6 (depends on 5) The forged aluminum alloy product of claim 5, wherein the forged aluminum alloy product realizes a long transverse (LT) tensile yield strength of at least 76 ksi, and wherein the strength properties are realized at the sectional thickness of at least 1 inch of the forged product. ### Claim 7 (depends on 5) The forged aluminum alloy product of claim 5, wherein at least portions of the forged aluminum alloy product have a sectional thickness of at least 2 inches, and wherein the strength properties are realized at the sectional thickness of at least 2 inches of the forged aluminum alloy product. ### Claim 8 (depends on 1) The forged product of claim 1, wherein the representative first grains have an average aspect ratio of at least 5.5:1 in the LT-ST plane. ### Claim 9 (depends on 1) The forged product of claim 1, wherein the representative first grains have an average aspect ratio of at least 6:1 in the LT-ST plane. ### Claim 10 (depends on 8) The forged aluminum alloy product of claim 8, wherein the representative first grains have an average aspect ratio of at least 7:1 in the L-ST plane. ### Claim 11 (depends on 8) The forged aluminum alloy product of claim 8, wherein the representative first grains have an average aspect ratio of at least 9:1 in the L-ST plane. ### Claim 12 (depends on 8) The forged aluminum alloy product of claim 8, wherein the representative first grains have an average aspect ratio of at least 11:1 in the L-ST plane. ### Claim 13 (depends on 8) The forged aluminum alloy product of claim 8, wherein the representative first grains have an average aspect ratio of at least 13:1 in the L-ST plane. ### Claim 14 (depends on 8) The forged aluminum alloy product of claim 8, wherein the representative first grains have an average aspect ratio of at least 14:1 in the L-ST plane. ### Claim 15 (depends on 14) The forged product of claim 14, wherein the representative first grains have an average aspect ratio of not greater than 30:1 in the L-ST plane. ### Claim 16 (depends on 10) The forged product of claim 10, wherein the forged aluminum alloy product realizes a maximum ODF intensity of at least 40. ### Claim 17 (depends on 11) The forged product of claim 11, wherein the forged aluminum alloy product realizes a maximum ODF intensity of at least 50. ### Claim 18 (depends on 12) The forged product of claim 12, wherein the forged aluminum alloy product realizes a maximum ODF intensity of at least 55. ### Claim 19 (depends on 1) The forged product of claim 1, wherein the 2xxx aluminum alloy comprises 2-6 wt. % Cu, 0.1-1.0 wt. % Mg, up to 2 wt. % Li, up to 1 wt. % Mn, and up to 1 wt. % Ag. ### Claim 20 (depends on 1) The forged product of claim 1, wherein the 2xxx aluminum alloy is a 2xxx+Li aluminum alloy.