ZK61S、ZK61M 、 ZK61A
Magnesium alloy ZK61 is a MgZnZr alloy. The zirconium element in the alloy mainly plays the role of refining the grains, improving the mechanical properties of the alloy such as tensile yield elongation, making the ZK61 magnesium alloy a very high-strength magnesium alloy. Zirconium can reduce thermal cracking, corrosion resistance, high temperature resistance, and creep resistance. The zinc content is between 4.8% and 6.2%, which is close to the solid solubility of zinc in magnesium alloys. The increase of zinc content plays a role of solid solution strengthening, while zinc content greater than 1% will increase the tendency of hot cracking, which is not good for welding, resulting in low welding performance and cannot be made into weldments.
Density 1.83 g/cm3
Melting point 520 - 635 °C
Coefficient of thermal expansion 27 µm/m°C
Thermal conductivity 120 W/mK
ZK61M belongs to the Mg-Zn-Zr series magnesium alloy, which has high specific strength and is easy to cut and process; excellent vibration damping performance, large internal friction coefficient, and improved equipment stability, such as aerospace shock absorbing parts, tank armor, etc.; excellent electromagnetic Shielding, good shielding effect on electromagnetic waves of different bands, suitable for gyroscope shells, etc.
In terms of military industry, ZK61M has the obvious advantages of light weight and high specific strength, and is widely used in the field of national defense and military industry. The electronic chassis in fighter planes and unmanned aerial vehicles can quickly reduce the weight of the structure; the manufacturing of individual soldiers' backpack equipment casings can meet their electromagnetic shielding requirements.
In the manufacturing of aviation industry, parts with heavy load can be manufactured. With the breakthrough in the production technology of large-scale rolled plate products, the application prospect of this brand of magnesium alloy products is very broad.