Magnesium is widely used as a part of aluminum alloys. Researchers also recently created a new low-cost alloy based on aluminum, calcium and magnesium, which may prove useful for lightweight, high-temperature components in … Uses of Magnesium. Magnesium Alloy. This includes alloys used in aluminum beverage cans. It’s lighter by volume than aluminum by approximately 30% (it’s actually the lightest structurally-used metal in the world), while having a greater strength-to-weight ratio. Magnesium alloys are used in seawater-activated primary batteries, usually with silver chloride cathodes. Magnesium has a reputation for being highly flammable, and in the past magnesium alloys were not allowed to be used in airplane interiors. Magnesium alloys are also used in many other engineering applications where being lightweight is a significant advantage. Magnesium, alloyed with zinc, is used in die casting. Magnesium is a mineral found in the earth, sea, plants, animals and humans. More recently , resurgence of interest in Magnesium for interior applications Magnesium, an alternative to aluminum, is used as a primary alloy for an increasing number of laptop designs. This system was developed to use the magnesium alloy AZ61 (Mg-6Al-1Zn). In this process the molten metal is forced into a mold (die) under high pressure and this takes on the shape of the mold when it cools. Magnesium-zirconium alloys tend to be used in relatively low-volume applications where they are processed by sand or investment casting, or wrought products by extrusion or forging. Although the theoretical open circuit EMF for this type of cell is 2.6 V practical working voltages are of the order of 1.1 V. • Solid Magnesium requires significant heat to melt • Melting point is the same as Aluminium • Melting must occur before opportunity to burn • Newer alloys (WE43, Elektron 21) are more “flame resistant” than older alloys • Magnesium used in Aircraft Engines.