An aluminum alloy fin material for a heat exchanger is made of an aluminum alloy including 0.05 mass % to 0.5 mass % of Si, 0.05 mass % to 0.7 mass % of Fe, 10 mass % to 2.0 mass % of Mn, 0.5 mass % to 1.5 mass % of Cu, and 3.0 mass % to 7.0 mass % of Zn, with the balance being Al and unavoidable impurities. In an L-ST plane thereof, second-phase grains having an equivalent circle diameter equal to or more than 0.030 μm and less than 0.50 μm have a perimeter density of 0.30 μm/μm.sup.2 or more, second-phase grains having an equivalent circle diameter equal to or more than 0.50 μm have a perimeter density of 0.030 μm/μm.sup.2 or more, and specific resistance thereof at 20° C. is 0.030 μΩm or more.

Provided herein are highly formable aluminum alloys and methods of making the same. The highly formable aluminum alloys described herein can be prepared from recycled materials without significant addition of primary aluminum alloy material. The aluminum alloys are prepared by casting an aluminum alloy that can include such recycled materials and processing the resulting cast aluminum alloy article. Also described herein are methods of using the aluminum alloys and alloy products.

A plate made of a rolled aluminum alloy and a method for producing said plate are disclosed. In order to achieve high strength values, it is proposed for the plate to have a partially recrystallized structure with a degree of recrystallization of less than 25%, wherein the non-recrystallized structure region of the structure is in the recovered state and has an average subgrain size of less than 10 μm in the rolling direction.

In some embodiments of the present invention a method includes: obtaining a first aluminum alloy sheet formed from rolling a first ingot of a 3xxx or a 5xxx series aluminum alloy, wherein, prior to rolling, the first ingot has been heated to a sufficient temperature for a sufficient time to achieve a first dispersoid f/r of less than 7.65; and forming a container precursor from the first aluminum alloy sheet, wherein when the first aluminum alloy sheet is formed into the container precursor, the container precursor has less observed surface striations and ridges as compared to a container precursor formed from a second aluminum alloy sheet rolled from a second ingot having a second dispersoid f/r value of 7.65 or greater.

The present disclosure provides a pulse current assisted uncanned rolling method for titanium-TiAl composite plates, including the following specific steps: 1. preparing titanium alloy sheets; 2. preparing TiAl alloy sheets; 3. uncanned lay-up; 4. pulse current assisted hot-rolling; 5. separation and subsequent processing, thus getting the titanium-TiAl composite plates. The composite plates are of good quality on the surface without oxide layer shedding, no cracks at the edges and the ends, with uniform and fine microstructures, good bonding interface and excellent mechanical properties.

A process for manufacturing an aluminum-based alloy sheet directly from a molten aluminum-based alloy is described. In a continuous caster, such as a belt-caster, and directly from the molten aluminum-based alloy, a substantially solid and substantially thin aluminum-based alloy strip, thinner than about 10 mm, is continuously cast and simultaneously cooled with a compression force on the solidifying aluminum-based alloy in a range of about 2 to about 3000 pounds per linear inch of alloy strip width. The substantially solid aluminum-based alloy strip can then be rolled, so as to obtain the aluminum-based alloy sheet. The process can include pulse heating the aluminum-based allowed sheet.

The specification discloses a nonferrous extrusion system and process providing improved transfer of extrusions from the runout table to the cooling table. The runout table includes interleaved runout rollers and transfer rollers that are vertically shiftable with respect to one another. The transfer rollers additionally are horizontally shiftable between the runout table and the cooling table. The runout table receives extrusions in a longitudinal direction. The vertical and horizontal shifting of the rollers is controlled to transfer the extrusions from the runout table to the cooling table.

An aluminum alloy material comprises: Si: less than 0.2 mass %, Fe: 0.1 to 0.3 mass %, Cu: 1.0 to 2.5 mass %, Mn: 1.0 to 1.6 mass %, and Mg: 0.1 to 1.0 mass %, the balance being Al and incidental impurities. A number density of Al—Mn compound having a circle equivalent diameter of not less than 0.1 μm is not less than 1.0×10.sup.5 mm.sup.−2, and a number density of Al.sub.2Cu having a circle equivalent diameter of not less than 0.1 μm is not more than 1.0×10.sup.5 mm.sup.−2.

The object of providing a method for conditioning a working roll with which the material properties of a working roll can be set in a process-reliable and uniform manner is achieved by a method in which a roll and at least one pressure tool are rotated relative to each other, in which pressure is applied locally to the roll by means of the at least one pressure tool, comprising at least one pressure element, via the at least one pressure element, and in which a deep rolling process is carried out.

A method of forming and processing a high strength aluminum alloy for the production of a vehicle component includes providing a metal sheet that was rolled from an aluminum alloy. The sheet is heat treated through a first aging step of a set of aging steps that are necessary to achieve a T6 or a T7 temper state. Prior to achieving the T6 or a T7 temper state, the sheet is formed to a desired shape and welded in the desired shape to produce a desired vehicle component. Once formed, the vehicle component is heat treated through a remaining aging step to achieve a T6 or T7 temper state homogeneously throughout the vehicle component.