Why isn't Tungsten Metal Used to Make Aero Engines?
Tungsten metal is the metal with the highest melting point in the world, with a melting point as high as 3380 ℃ . In comparison, the melting point of iron is only 1538 ℃ , and the melting point of nickel is only 1455 ℃ . Therefore, the filament made of metal tungsten is used in the incandescent light bulbs we commonly use, because only this metal can withstand the huge heat generated when current passes through. When we are talking about high temperature resistance, there may be no where we need to look for high temperature resistant materials but aero engines. After all, aero engines need to produce a large amount of energy through extremely violent combustion to drive the aircraft to fly, resulting in a temperature rise after the combustion chamber. It needs to be as high as 2000℃ or even higher. But why we didn ’ t see tungsten metal in aero engines processing, even compounds containing tungsten ？ Characteristics of Tungsten Steel First of all, because the density of tun...