What are the advantages of magnesium wheels over aluminum wheels?

The advantages of magnesium alloy wheels over aluminum alloy wheels are as follows：

First of all, the weight is lighter; the density of magnesium is 1.74, which is 2/3 of that of aluminum and 1/4 of that of steel. 15-inch car wheels, for example, magnesium alloy wheels weigh only 4.2 kg, while aluminum alloy wheels weigh 6.2 kg. The application of magnesium alloy wheels to the whole vehicle reduces the weight of the vehicle by about 8 kg compared with aluminum alloy wheels, which can reduce the overall weight of the vehicle by 1.5 - 2.5%, greatly reduce the unsprung weight of the vehicle, and improve the acceleration and braking performance of the vehicle, as well as the fuel.

Secondly, the magnesium alloy wheel production process using the forging process is more appropriate, forging can make the metallographic organization of the metal dense, the organization has been strengthened, and the single mechanical properties indicators generally increase 30% -50%, individual indicators are several times higher. After forging to improve the strength of the material, it can be applied in the hub structure design, such as rim and spoke thinning, to realize the quality reduction.

Furthermore, magnesium alloy has excellent energy-absorbing and shock-absorbing properties, which can be used in the front wheels to reduce the phenomenon of pushing head effectively in the vehicle turning, uphill, and improve the maneuverability; used in the rear wheels can reduce inertia to shorten the braking distance and effectively control the tail to improve safety.