Parts of an Airplane Made of Titanium

EdwardLeigh

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Titanium is a light alloy able to withstand virtually any external damage from heat, chemical, environmental, industrial or corrosive contaminants. The material is perfect for many fabricated sub-assemblies that require low weight, high strength and long service life.

Airplane Engines:
Internal titanium sub-components in aircraft engines have been successfully applied since the early 1980s. Typical rotating or static engine parts, including impellers, compression disks, turbine stators, bearings and thrust outlet sheaths have been applied. The alloy is usually used where high strength, low weight and significant durability is particularly critical.

Wing Components:
Titanium is typically used to fabricate internal sub-assemblies that are able to accommodate very high flight loads. This is particularly true of internal wing structures, such as main spars, or wing boxes associated with variable airfoil designs. In this case, typical loads associated with static wing configurations are magnified considerably, since a movable wing has to deal with a host of dynamic load changes, depending on speed and/or operating regime.


Thanks and Regards,
Edward Leigh
 

W.G.Ewald

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Aerospace and marine

Titanium - Wikipedia, the free encyclopedia

Due to their high tensile strength to density ratio,[7] high corrosion resistance,[3] fatigue resistance, high crack resistance,[52] and ability to withstand moderately high temperatures without creeping, titanium alloys are used in aircraft, armor plating, naval ships, spacecraft, and missiles.[3][4] For these applications titanium alloyed with aluminium, vanadium, and other elements is used for a variety of components including critical structural parts, fire walls, landing gear, exhaust ducts (helicopters), and hydraulic systems. In fact, about two thirds of all titanium metal produced is used in aircraft engines and frames.[53] The SR-71 "Blackbird" was one of the first aircraft to make extensive use of titanium within its structure, paving the way for its use in modern military and commercial aircraft. An estimated 59 metric tons (130,000 pounds) are used in the Boeing 777, 45 in the Boeing 747, 18 in the Boeing 737, 32 in the Airbus A340, 18 in the Airbus A330, and 12 in the Airbus A320. The Airbus A380 may use 77 metric tons, including about 11 tons in the engines.[54] In engine applications, titanium is used for rotors, compressor blades, hydraulic system components, and nacelles. The titanium 6AL-4V alloy accounts for almost 50% of all alloys used in aircraft applications.[55]

Due to its high corrosion resistance to sea water, titanium is used to make propeller shafts and rigging and in the heat exchangers of desalination plants;[3] in heater-chillers for salt water aquariums, fishing line and leader, and for divers' knives. Titanium is used to manufacture the housings and other components of ocean-deployed surveillance and monitoring devices for scientific and military use. The former Soviet Union developed techniques for making submarines largely out of titanium.[56]
 

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