Magnesium alloy

Magnesium alloy is a kind of lightweight and high-strength metal material with unique advantages and characteristics. This paper will introduce the characteristics of magnesium alloy from the following aspects.

1. Light weight

The density of magnesium alloy is only twice that of aluminum alloy, but the strength is greater than aluminum alloy. As a result, it is a lightweight, high-strength material that weighs only about a third as much as steel. In the manufacture of lightweight products such as high-speed vehicles, military aircraft and guided missiles, magnesium alloys have advantages over other metal materials.

2. High intensity

The tensile strength of magnesium alloy is higher than that of aluminum alloy, but weaker than that of titanium alloy. At the same time of lightweight, magnesium alloy can also ensure sufficient strength. This makes magnesium alloy in aviation, aerospace, automotive, electronics, ships and other fields have a wide range of applications, such as aircraft structural parts, car hood, mobile phone shell, ship bulkhead and so on.

3. Good corrosion resistance

Due to the active chemical properties of magnesium, it is easy to react with oxygen, water, acid, etc., so the corrosion resistance of magnesium alloy is poor. However, in response to this problem, engineers have conducted years of research and developed a lot of treatment methods that can ensure the strength of magnesium alloys and improve their corrosion resistance, such as anodizing, chemical chromium plating, coating and so on.

4. Good processability

The machinability of magnesium alloy is better than that of aluminum alloy and titanium alloy, and it has advantages in machining and hot molding. It has been widely used in aviation, automobile, electronics, construction, military and other fields, such as aircraft engine parts, automobile exhaust pipes, mobile phone parts, building structural parts and so on.

5. Strong energy absorption ability

Magnesium alloy has a good energy absorption capacity, that is, when subjected to impact, it can absorb impact energy and plastic deformation. Therefore, magnesium alloy can be made into seat belt buckle, bulletproof shield, deck anti-collision strip, aircraft seat support and other energy-absorbing parts.

6. Poor thermal stability

Due to the poor thermal stability of magnesium alloy, it is easy to crack and fracture during processing and use. However, this problem can be avoided and solved through reasonable design and processing technology.

In short, magnesium alloy is a kind of metal material with the characteristics of light weight, high strength, good machinability and strong energy absorption ability. Although its corrosion resistance is not as good as other metal materials, many treatment methods can improve this problem. With the continuous progress of science and technology, the application prospect of magnesium alloy in various fields will continue to expand.