Alcoa Inc.

Aluminum Company of America

Arconic Corporation

Aloca Inc.

Arconic Technologies LLC

Roberto J Rioja

Ralph R Sawtell

Edward L Colvin

Gary H Bray

Dustin M Bush

Paul E Magnusen

Jen C Lin

Diana K Denzer

Rajeev G Kamat

Gregory B Venema

Philip E Bretz

Cagatay Yanar

Dirk C Mooy

John Newman

John E Jacoby

Alex Cho

Shawn J Murtha

James Daniel Bryant

Shawn Patrick Sullivan

Darl G Boysel

David J McNeish

Gino Norman Iasella

Cindie Giummarra

Asuri K Vasudevan

Andre L Wilson

Brandon Hendrickson Bodily

Larry N Mueller

Mario Greco

Eric V Roegner

Les A Yocum

Francine S Bovard

Ian Murray

Brett P Connor

Kevin P Armanie

R Steve James

Brian A Cheney

Todd K Cogswell

Men Glenn Chu

Dhruba J Chakrabarti

Robert W Westerlund

Robert L Kozarek

Gregory J Hildeman

Amiya K Chakrabarti

David D Leon

James T Staley

Anthony Morales

Julien Boselli

Jiantao Liu

Brett P Conner

G William Kuhlman

David A Linde

Joel A Bowers

Feyen Gerriet

Khurram Shahzad Chaudhry

Soonwuk Cheong

Edward Llewellyn

Anne E Roberts

Robert Newell

Daniel K Gadbery

Walter D Coker

Charles E Brooks

Jeffrey J Witters

Frank W Baker

Brett Conner

Jiantao T Liu

Francine Bovard

The present application discloses wrought 2xxx Al&#x2014;Li alloy products that are work insensitive. The wrought aluminum alloy products generally include from about 2.75 wt. % to about 5.0 wt. % Cu, from about 0.2 wt. % to about 0.8 wt. % Mg, where the ratio of copper-to-magnesium ratio (Cu/Mg) in the aluminum alloy is in the range of from about 6.1 to about 17, from about 0.1 wt. % to 1.10 wt. % Li, from about 0.3 wt. % to about 2.0 wt. % Ag, from 0.50 wt. % to about 1.5 wt. % Zn, up to about 1.0 wt. % Mn, the balance being aluminum, optional incidental elements, and impurities. The wrought aluminum alloy products may realize a low strength differential and in a short aging time due to their work insensitive nature.

2XXX series aluminum lithium alloys having low strength differential

Methods for producing forged products and other worked products are disclosed. In one embodiment, a method comprises using additive manufacturing to produce a metal shaped-preform and, after the using step, forging the metal shaped-preform into a final forged product. The final forged product may optionally be annealed.

Methods for producing forged products and other worked products

A recrystallized aluminum alloy having brass texture and Goss texture, wherein the amount of brass texture exceeds the amount of Goss texture, and wherein the recrystallized aluminum alloy exhibits at least about the same tensile yield strength and fracture toughness as a compositionally equivalent unrecrystallized alloy of the same product form and of similar thickness and temper.

Recrystallized aluminum alloys with brass texture and methods of making the same

New magnesium-zinc aluminum alloy bodies and methods of producing the same are disclosed. The new magnesium-zinc aluminum alloy bodies generally include 3.0-6.0 wt. % magnesium and 2.5-5.0 wt. % zinc, where at least one of the magnesium and the zinc is the predominate alloying element of the aluminum alloy bodies other than aluminum, and wherein (wt. % Mg)/(wt. % Zn) is from 0.6 to 2.40, and may be produced by preparing the aluminum alloy body for post-solutionizing cold work, cold working by at least 25%, and then thermally treating. The new magnesium-zinc aluminum alloy bodies may realize improved strength and other properties.

Heat treatable aluminum alloys having magnesium and zinc

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.

High strength forged aluminum alloy products

Improved aluminum-copper-lithium alloys are disclosed. The alloys may include 3.4-4.2 wt. % Cu, 0.9-1.4 wt. % Li, 0.3-0.7 wt. % Ag, 0.1-0.6 wt. % Mg, 0.2-0.8 wt. % Zn, 0.1-0.6 wt. % Mn, and 0.01-0.6 wt. % of at least one grain structure control element, the balance being aluminum and incidental elements and impurities. The alloys achieve an improved combination of properties over prior art alloys.

Aluminum-copper-lithium alloys

Heat treatable aluminum alloys having magnesium and zinc and methods for producing the same

New 2xxx aluminum lithium alloys are disclosed. The aluminum alloys include 3.5-4.4 wt. % Cu, 0.45-0.75 wt. % Mg, 0.45-0.75 wt. % Zn, 0.65-1.15 wt. % Li, 0.1-1.0 wt. % Ag, 0.05-0.50 wt. % of at least one grain structure control element, up to 1.0 wt. % Mn, up to 0.15 wt. % Ti, up to 0.12 wt. % Si, up to 0.15 wt. % Fe, up to 0.10 wt. % of any other element, with the total of these other elements not exceeding 0.35 wt. %, the balance being aluminum.

2xxx series aluminum lithium alloys

Aluminum alloys having an improved combination of properties are provided. In one aspect, a method for producing the alloy includes preparing an aluminum alloy for artificial aging and artificially aging the alloy. In one embodiment, the artificially aging step includes aging the aluminum alloy at a temperature of at least about 250&#xb0; F., and final aging the aluminum alloy at a temperature of not greater than about 225&#xb0; F. and for at least about 20 hours.

Aging of aluminum alloys for improved combination of fatigue performance and strength

Improved 5xxx aluminum alloys and products made therefrom are disclosed. The new 5xxx aluminum alloy products may achieve an improved combination of properties due to, for example, the presence of copper. In one embodiment, the new 5xxx aluminum alloy products are able to achieve an improved combination of properties by solution heat treatment.

5XXX aluminum alloys and wrought aluminum alloy products made therefrom

An automobile component including an aluminum alloy product having a base aluminum alloy layer and a first additional aluminum alloy layer disposed directly on the base layer. The base aluminum alloy layer includes 2.0 to 22 wt. % zinc and the zinc is a predominate alloying element of the base layer other than aluminum and the first additional aluminum alloy layer includes 0.20 to 8.0 wt. % magnesium and the magnesium is a predominate alloying element of the first additional aluminum alloy layer other than aluminum. The automobile component may include outer panel sections, high form inner sections, reinforcement sections, crash sections, large flat panel sections, and high strength sections and, when tested in a static axial crush test, a peak load of the automobile component increases at least 20% when compared to alloy 6014 in the T6 temper.

Crashworthy structures formed of multilayered metallic materials

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Murrysville, PA, United States of America

Roberto J Rioja