There are at least dozens of wrought aluminum alloys used in aircraft, mainly Al-Cu and Al-Zn alloys. Al-Cu alloy,that is 2xxx aluminum, is of medium-high strength, high fatigue and high corrosion resistance, inluding 2024, 2124, 2224,2324, 2524 and so on.
Al-Zn alloy, that is 7xxx aluminum, is of high-strength and high fatigue resistance, including 7050, 7055, 7075 and so on. The corrosion resistance of 7xxx alloy is not as good as that of 2xxx alloy, especially the stress corrosion resistance, so 7xxx aluminum needs a special heat treatment process to improve the corrosion resistance.
2xxx aluminum alloys are mainly used in aerospace. For example, 2024 is mainly used for propeller structures and aircraft fuselage; 2124 is mainly used for aircraft appearance and wings; 2224 aluminum is mainly used for aircraft structures; 2524 is mainly used for aircraft appearances.
2024 T3 aluminum was developed earlier. In order to give full play to the potential of the alloy, the research on the heat treatment process at the tempers of T361, T81 and T861 has been carried out.
The derivatization of 2024 alloy is to improve the plasticity, toughness and strength of the alloy while keeping the main alloy elements substantially unchanged. By reducing the Fe and Si impurity content in 2024 alloy, new alloys such as 2124, 2224, and 2524 have been developed one after another.
In the 1970s, on the basis of the traditional 2024 alloy, the 2124 alloy with high purity, high strength and high toughness was developed by reducing the content of impurities such as Fe and Si. Haomei Aluminum has all the main 2xxx aircraft aluminum sheet. Welcome to leave message below to inquire what you need.
Original Source:https://www.aircraftaluminium.com/a/the-development-of-2xxx-aircraft-aluminum-sheets.html
Tags: aircraft aluminum sheet , 2024 t3 aluminum , 2xxx aluminum ,
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