Automobile lightweight materials are mainly aluminum alloys and magnesium alloys. Aluminum alloy has high strength, is easy to form and process, and has good corrosion resistance and recyclability. It is one of the most cost-effective lightweight materials in the automotive manufacturing industry and is widely used in engine manufacturing, wheels, subframes and secondary load bearings.
There are two 5XXX aluminum alloys among high-performance automotive aluminum alloy sheets: 5754 and 5182. In addition to these two alloys, 5022, 5023, 5454, 5154, 5083 and other alloys are also used.
The strength of al 5454 is about 20% higher than that of 5052. Its characteristics are roughly the same as 5154, but its corrosion resistance in harsh environments is better than 5154. It is widely used in automotive wheels. 5454 aluminum plate is also widely used in pressure vessels, marine facility pipelines, automobile wheels, and oil tanker cylinders.
5754 aluminum is used in the manufacturing of door linings. It has the advantages of high strength, good plasticity, high specific strength, good welding performance, strong temperature resistance, good corrosion resistance, and high fatigue resistance.
The yield strength of 5XXX aluminum alloy automotive sheets is an important indicator that affects its forming springback, and can be controlled by the solid solution content of Mg and the grain size. The relationship between the yield strength and grain size of 5754 and 5182 aluminum alloy automotive sheets obeys the Hall-Petch relationship: σy =σ0+kyd-1/2, where: σy is the yield strength, σ0 is the friction stress, d is the grain size and ky is the grain boundary resistance constant.
5754 aluminum alloy is only suitable for manufacturing inner panel materials of automobile bodies and is not suitable for manufacturing outer coverings of automobile bodies, while 6061 aluminum alloy is more suitable for outer coverings in automobiles that require high surface quality. The fracture mode of 6061 aluminum alloy is similar to that of 5754 aluminum alloy. They are both ductile fractures. However, the number of dimples in the fracture of 5754 aluminum alloy is larger, and the depth of the dimples is deeper than that of the 6061 aluminum alloy. Welcome to leave message below to inquire 5754 aluminium alloy specifications from us.
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