What materials are used in landing gear?
Landing gear materials must therefore have high static strength, good fracture toughness and fatigue strength, and the most commonly used materials are high-strength steel and titanium alloy. Landing Gear: For landing gear systems, strength, durability, and shock absorption are paramount. The lightweight yet robust nature of titanium enables landing gear to withstand the impact forces experienced during landings and takeoffs, ensuring the safety and reliability of aircraft.Landing gear materials must therefore have high static strength, good fracture toughness and fatigue strength, and the most commonly used materials are high-strength steel and titanium alloy.THE A350/900 MAIN LANDING GEAR The design includes the increased use of advanced materials, in particular high strength titanium, corrosion resistant steels and HVOF coatings.
What steel is used in aircraft landing gears?
Precipitation hardening (PH) stainless steels are the best materials to meet the requirements of aircraft landing gears. There are several commercial high-strength PH stainless steels on the market. The most fitchered material is Custom465 steel alloy (Carpenter Technology Corp. Aerospace-grade steel is often used to produce landing gear because of its ability to withstand high stress and large impacts. It is a cost-effective choice for many aircraft parts that require high-quality and long-lasting performance. Some components commonly made of steel include: Engines. Exhaust ducts.
What material is the landing gear on the Boeing 777 made of?
The high strength and low density of titanium (~40% lower than that of steel) provide many opportunities for weight savings. The best example of this is its use on the landing gear of the Boeing 777 and 787 aircraft and the Airbus A380. Figure 1 shows the landing gear on the 777 aircraft. Titanium is not as hard as some grades of heat-treated steel; it is non-magnetic and a poor conductor of heat and electricity.The metal is highly reactive with oxygen, and when the two elements mix, becomes very fragile and brittle. This makes it brittle and more susceptible to cracking. Oxygen is titanium’s biggest enemy.Steel is stronger than titanium, with higher tensile yield strength. However, titanium offers higher strength-to-weight ratios. Titanium boasts excellent corrosion resistance, especially in harsh environments.Titanium is considered the most biocompatible metal due to its resistance to corrosion from bodily fluids, bio-inertness, capacity for osseointegration, and high fatigue limit.