What is the Application of Rare Earth Magnesium Alloy Materials in Aerospace and Military Industry?>

The application performance advantages of rare earth magnesium alloys are mainly reflected in high temperature resistance and high strength. By adding rare earth elements to alloy, the strength and heat resistance temperature of magnesium alloys can be significantly improved. Many countries have applied heat-resistant rare-earth magnesium alloys to aircraft skins, missile cabins, satellite space structures, spacecraft frames, engine hoods, engine cylinder blocks, and gearbox housings. With social and economic development, there will be greater expansion in both the military and civilian fields.

High-performance rare-earth magnesium alloys are widely used in the automotive industry, rail transit, aerospace, weaponry, 3C products and biomedical implant materials due to their excellent comprehensive properties.

Magnesium alloy is an ideal structural material to reduce the quality of weapons and equipment, realize the lightweight of weapons and equipment, and improve the performance of weapons and equipment. The needs of weapons and equipment have promoted the development of high-performance magnesium alloy materials and application technology development. In terms of military industry, ZM6 cast magnesium alloy with rare earth metal neodymium as the main additive element has been used in important parts such as helicopter gearboxes, fighter wing ribs and rotor lead plates of 30 kW generators. With the advancement of smelting and processing technology, the reduction of prices, and the increasing requirements for lightweight weapons and equipment, the application of magnesium alloys in weapons and equipment has become more and more demanding.

1. Typical examples of foreign magnesium alloys used in weapons

(1) The 21st century soldier weapon being developed by the U.S. military - an ideal individual soldier integrated combat system, plans to use magnesium alloy as the shell and other components to reduce the mass from 8.17 kg to 6.37 kg;

(2) The advanced horizontal amphibious two-handled assault vehicle being developed by the US military uses magnesium alloy as the shell and adopts advanced magnesium alloy surface protection technology. It has been proved by tests that the surface performance is good;

(3) Magnesium alloys have been used in the soft shell of sub-caliber shelling shells and armor-piercing shells in foreign countries;

(4) Some parts of the French MK50 anti-tank grenade are made of magnesium alloy materials, and the mass of the whole bomb is only 800 g;

(5) The trigger and other parts of the Racegan (strong charge, advanced combat pistol) made in the United States are made of magnesium alloy, which reduces the weight by 45% and the firing time by 66%.