Magnesium alloy has low density, good specific performance, good shock absorption performance, good electrical and thermal conductivity, good process performance, poor corrosion resistance, easy oxidation and combustion and poor heat resistance.
The processing technology, corrosion and mechanical properties of magnesium alloys have many characteristics: fast heat dissipation, light weight, good rigidity, certain corrosion resistance and dimensional stability, impact resistance, wear resistance, good attenuation performance and easy recycling; In addition, it also has the characteristics of high thermal conductivity, high electrical conductivity, non-magnetism, good shielding and non-toxicity.
Used friends know that magnesium alloys are very easy to oxidize, especially in acid-base environment. Compared with the oxide film protection layer formed spontaneously by aluminum alloy, magnesium alloy is oxidized black and easy to corrode. If it is used for exterior wall decoration or in harsh use environment, it usually needs special surface treatment to achieve corrosion resistance and oxidation resistance.
Extended data
Although the specific gravity of magnesium alloy is heavier than that of plastic, the strength and elasticity per unit weight are higher than that of plastic, so magnesium alloy parts can be made thinner and lighter than plastic under the same strength. In addition, because the specific strength of magnesium alloy is higher than that of aluminum alloy and iron, the weight of aluminum or iron parts can be reduced without reducing the strength of parts.
Magnesium alloy has the highest relative specific strength (the ratio of strength to mass). The specific stiffness (the ratio of stiffness to mass) is close to that of aluminum alloy and steel, and much higher than that of engineering plastics.
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