Magnesium alloy is a type of metal made primarily from magnesium combined with other elements, such as aluminum, zinc, or manganese. These alloys are known for their lightweight properties, making them ideal for applications in the automotive and aerospace industries, where reducing weight can improve fuel efficiency and performance. In addition to being lightweight, magnesium alloys also exhibit good strength and corrosion resistance. They are often used in manufacturing components like engine blocks, wheels, and electronic casings. The combination of these properties makes magnesium alloys a popular choice for engineers looking to create durable and efficient products.