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US 2019/0153569 A1Published application
Aluminum alloy and method for manufacturing aluminum alloy
AssigneeSumitomo Electric Industries, Ltd.
InventorsKengo GOTO, Akihisa HOSOE
Life of this patent
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Abstract
An aluminum alloy contains at least one additive element selected from the group consisting of Zr, Cu, Cr, and Zn in an amount of 0.010% by mass or more and 8.0% by mass or less, and C in an amount of 0.01% by mass or more and 10.0% by mass or less.
Claims8
1:
- An aluminum alloy comprising at least one additive element selected from the group consisting of Zr, Cu, Cr, and Zn in an amount of 0.010% by mass or more and 8.0% by mass or less;
- and C in an amount of 0.01% by mass or more and 10.0% by mass or less.
2:
- The aluminum alloy according to claim 1, wherein when the aluminum alloy is subjected to heat treatment at 600° C. for one hour, a rate of decrease in tensile strength after the heat treatment is within 20%.
3:
- The aluminum alloy according to claim 1, wherein the aluminum alloy has a surface having an arithmetic mean roughness Ra of 0.20 μm or less.
4:
- The aluminum alloy according to claim 1, wherein the aluminum alloy has a foil shape having a thickness of 3 μm or more and 40 μm or less.
5:
- The aluminum alloy according to claim 1, wherein the aluminum alloy has a three-dimensional network structure.
6:
- A method for manufacturing the aluminum alloy according to claim 1, the method comprising:
- an electrolysis step of conducting molten salt electrolysis by using a molten salt bath prepared by adding an aluminum halide, an additive element-containing compound that contains at least one additive element selected from the group consisting of Zr, Cu, Cr, and Zn, and a smoothing agent to a molten salt to thereby electrodeposit an aluminum alloy on a surface of a substrate,
- wherein the smoothening agent is at least one selected from the group consisting of 1,10-phenanthroline chloride monohydrate, 1,10-phenanthroline monohydrate, and 1,10-phenanthroline, and
- a concentration of the smoothing agent in the molten salt bath is a concentration at which a concentration of C in the aluminum alloy is 0.01% by mass or more and 10.0% by mass or less.
1 more element
7:
- The method for manufacturing the aluminum alloy according to claim 6, the method further comprising a heat treatment step of subjecting the aluminum alloy electrodeposited on the surface of the substrate to heat treatment at a temperature of 250° C. or higher and 500° C. or lower.
8:
- The method for manufacturing the aluminum alloy according to claim 6,
- wherein the molten salt contains
- at least one molten salt-forming compound selected from the group consisting of alkylimidazolium halides, alkylpyridinium halides, and urea compounds, and
- a mixing ratio of the aluminum halide to the molten salt-forming compound is in a range of 1:1 to 3:1 on a molar basis.
1 more element