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An aluminum alloy and corrosion-resistant technology, applied in the field of corrosion-resistant aluminum alloys, can solve the problems of poor corrosion resistance of aluminum-silicon alloys, and achieve the effect of improving corrosion resistance
Inactive Publication Date: 2013-01-16
WUXI HONGCHANG HARDWARE MFG
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Problems solved by technology
[0003] The purpose of the present invention is to solve the problem of poor corrosion resistance of
Method used
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Examples
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Example Embodiment
[0011] Example 1
[0012] A corrosion-resistant aluminum alloy containing 4% silicon, 3% magnesium, 1.2% lithium, 0.3% titanium, 0.4% cobalt, 0.6% cerium, and 0.1% ytterbium by weight percentage. It is made up to 100% with aluminum and the silicon , Magnesium, Lithium, Titanium, Cobalt, Cerium, Ytterbium, and Aluminum are smelted and casted at 780℃ according to the proportioning amount.
Example Embodiment
[0013] Example 2
[0014] A corrosion-resistant aluminum alloy containing 4.5% silicon, 3.7% magnesium, 1.4% lithium, 0.34% titanium, 0.5% cobalt, 0.69% cerium, and 0.13% ytterbium by weight percentage. It is made up to 100% with aluminum and the silicon , Magnesium, lithium, titanium, cobalt, cerium, ytterbium, aluminum according to the proportion of smelting at 800 ℃, casting molding.
Example Embodiment
[0015] Example 3
[0016] A corrosion-resistant aluminum alloy containing 5% silicon, 4.3% magnesium, 2.7% lithium, 0.35% titanium, 0.6% cobalt, 0.76% cerium, and 0.2% ytterbium by weight percentage. It is made up to 100% with aluminum and the silicon , Magnesium, Lithium, Titanium, Cobalt, Cerium, Ytterbium, and Aluminum are smelted and casted at 780℃ according to the proportioning amount.
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Abstract
The invention discloses an anticorrosion aluminum alloy. The anticorrosion aluminum alloy comprises, by weight, 4-5% of silicon, 3-4.3% of magnesium, 1.2-2.7% of lithium, 0.3-0.35% of titanium, 0.4-0.6% of cobalt, 0.6-0.76% of cerium, 0.1-0.2% of ytterbium, and the balance of aluminum. Corrosion resistance, especially alkali corrosion, of the anticorrosion aluminum alloy can be improved evidently, and corrosion rate can be reduced from the original 0.034-0.038/(m2*h) to about 0.01g/(m2*h).
Description
technical field [0001] The invention belongs to the field of aluminum alloys, in particular to a corrosion-resistant aluminum alloy. Background technique [0002] Al-Si alloy has good ductility and is often used as a deformed alloy. However, due to the selective corrosion of Al-Si eutectic in actual use, how to improve the anti-corrosion performance of Al-Si alloy has become an urgent problem to be solved. Contents of the invention [0003] The object of the present invention is to solve the problem of poor corrosion resistance of existing aluminum-silicon alloys and provide an aluminum alloy with excellent corrosion resistance. [0004] The technical scheme adopted by the present invention to realize the above object is as follows: [0005] A corrosion-resistant aluminum alloy, composed by weight: 4-5% silicon, 3-4.3% magnesium, 1.2-2.7% lithium, 0.3-0.35% titanium, 0.4-0.6% cobalt, 0.6-0.76% cerium, ytterbium 0.1~0.2%, the balance is aluminum. [0006] Further, the co...
Claims
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