Magnesium-zinc Alloy
Magnesium-zinc alloys are found in a variety of applications ranging from automotive components to electronic devices. Magnesium-zinc alloys, also known as Mg-Zn alloys, offer a combination of strength and ductility while also being lightweight, corrosion-resistant, and non-toxic. In addition, Mg-Zn alloys are compatible with a variety medical uses due to their biocompatibility.
Although Mg-Zn alloys are typically made from a combination of magnesium and zinc, variations can be made by adding other metals to the alloy. Adding elements such as manganese, aluminium, iron, silicon, and copper can improve the properties and performance of an Mg-Zn alloy. For example, manganese helps to increase strength and hardness, while aluminium improves wear resistance.
Mg-Zn alloys are commonly used for aircraft and automotive parts such as wing spars, fuselage components, landing gear, and exhaust systems due to their superior strength and corrosion resistance. Additionally, Mg-Zn alloys can be used in electrical and electronic devices as they have a low consumption of electric current, which helps to reduce dissipation. Mg-Zn alloys are also used as coating on orthopaedic implants and prosthetic devices, as they can reduce the occurrence of wear and tear.
The production of Mg-Zn alloys can be a difficult process as the two metals have different melting temperatures. Magnesium melts at around 650°C, while zinc melts at around 420°C. This makes it difficult to achieve homogeneity unless the alloy is melted in a controlled-atmosphere furnace to prevent oxidation.
The cost of Mg-Zn alloys can vary depending on the alloy composition, but it is usually around 10-20% more expensive than traditional steel alloys. This is mainly due to the increased complexity in production and the cost of raw materials.
Mg-Zn alloys offer a cost-effective and lightweight solution for various applications requiring superior strength and corrosion resistance. Additionally, Mg-Zn alloys can be used in medical applications due to their biocompatibility. The cost of Mg-Zn alloys is typically higher than traditional steel alloys but they can offer longer service life and less maintenance, leading to long-term cost savings.
