| Customization: | Available |
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| Application: | Aviation, Electronics, Industrial, Medical, Chemical |
| Standard: | GB |
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Lithium (Li) is a silver-white light metal with a density of 0.53g/cm3 and a hardness of 0.6. is soluble in liquid ammonia. Magnesium is a hexagonal close-packed crystal. When lithium is added to magnesium to form magnesium-lithium alloy, it is a tetragonal crystal.
Overview of magnesium lithium alloy editing broadcast
It is the lowest density of structural metal materials. lithium is added to magnesium metal, generally containing 14-16% lithium, with a specific gravity between 1.4-1.6, lower than the general magnesium alloy 1.8, slightly higher than plastic density, strength 220 ~ 340MPa, The elastic modulus is 40GPa. Large damping, is more than ten times of aluminum alloy, that is, can absorb impact energy, vibration and noise reduction effect is good. In shielding electromagnetic interference, magnesium-lithium alloy also has outstanding performance.
Magnesium lithium alloy material in addition to ultra-light, the biggest feature of normal temperature plastic processing molding, such as rolling, stamping and other technology mass production, can also be cast molding and semi-solid injection molding.
Magnesium-lithium alloy products editor broadcast
As early as the 1960s, the United States NASA was developed and applied in the aerospace industry parts, but because of the high price of lithium and corrosion resistance, the development of Mg-Li alloy stalled. In recent years, due to the improvement of melting and surface treatment technology, the mass use of Mg-Li alloy has attracted more attention.
There are commercial magnesium-lithium alloy systems in the United States, Japan, Germany, Russia and other countries, but there is no corresponding alloy system in China. China's research on Mg-Li alloy is still in the initial stage. The new lightweight high-strength magnesia lithium alloy material developed by Xi 'an Sifang Ultra-Light Material Co., Ltd. has passed the scientific and technological achievement appraisal organized by Shaanxi Provincial Office of Science and Technology for National Defense in October 2009, and the overall technical level of the material has reached the domestic excellent and international advanced level. [1]
Deformed magnesia lithium alloy products come in foils, plates, tubes, rods, profiles, etc., and can be as thin as 0.06mm wall thickness. Magnesium - lithium alloy is cast in a variety of sizes.
The brand names are LA141(Mg85-Li14-Al1), LA91, LZ91, LAZ933 (Mg85-Li9-A3-Zn3), LAZ931 (Mg85-Li9-A3-Zn1), MA18, MA21
Our independently developed magnesia lithium alloy brands include L103Z, LA103M and LA43M [2]
Magnesium lithium alloy application editing broadcast
Magnesia lithium alloy is the lightest metal structural material in the world, with good thermal conductivity, electrical conductivity and ductility, and has a wide range of applications in aerospace, national defense and military industries. With the increasing requirements of lightweight, weight reduction, energy saving, environmental protection and sustainable development of structural materials in today's world, magnesium-lithium alloy has also shown broad application prospects in the fields of transportation, electronics, medical products, which need lightweight structural materials.
* Audio diaphragm (high damping coefficient ~0.01, top audio essential material);
Aerospace parts and special military materials (remote control aircraft upper and lower side panels, missiles, satellites, etc.);
* Sports equipment (bicycle, badminton racket);
* High-end 3C product structure parts (laptop case, tablet case, PDA, GPS, DV, DC, etc.).
The advantage of magnesium-lithium alloy is edited
Magnesium-lithium alloy is the lowest density alloy material, the density is generally 1.35-1.65(when the content of lithium is 6.9%, the density of magnesium-lithium alloy is 1.57g/cm3, when the content of lithium is 13.0%, the density of magnesium-lithium alloy is 1.42g/cm3, when the content of lithium is greater than 31%, the density of magnesium-lithium alloy will be less than 1g/cm3. At this time, magnesium lithium alloy can float on the water), lighter than ordinary magnesium alloy 1/4-1/3, lighter than aluminum alloy 1/3-1/2, known as ultralight alloy. Magnesium-lithium alloy has high specific strength stiffness (from the material rigidity point of view, if the rigidity of ordinary steel is 1, the rigidity of titanium is 2.9, the rigidity of aluminum is 8.19, the rigidity of magnesium is 18.9, and the rigidity of magnesium-lithium alloy is 22.68), excellent seismic performance and anti-energetic particle penetration ability, and its density is far less than that of new aviation materials. It is one of the most ideal structural materials with great development potential in the fields of aviation, aerospace, weapon industry, nuclear industry, automobile, 3C industry, medical equipment and so on.
In addition to the properties of general magnesium alloys, the unique characteristics of magnesium-lithium alloy can be summarized as follows:
(l) Because lithium is the lightest metallic element (density only 0.53g/cm3), magnesium-lithium alloys are much lighter than ordinary magnesium alloys (density is usually less than 1.6g/ cm3);
(2) in MG-lithium binary alloy, when Li%< At 5.7wt.%, the alloy is single-phase a structure (solid solution of Li in Mg). Eg. When At 10.3wt.%, the alloy is single-phase β structure (Mg solid solution in Li). When 5.7wt.% < Li % < 10.3wt.%, the alloy has a biphase a+β structure.
(3) In general magnesium alloys, the deformation capacity of magnesium alloys is poor due to the densely packed hexagonal lattice. In magnesium-lithium alloys, the a phase has a close-packed hexagonal structure and the β phase has a body-centered cubic structure. Compared with the close-packed hexagonal lattice, the body-centered cubic lattice has more slip systems. Therefore, the introduction of lithium will improve the deformation processing ability of magnesium lithium alloy.
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