1. Aluminum Alloys: Aluminum alloys are widely used in aircraft engines due to their combination of strength, lightweight, and corrosion resistance. They are commonly employed for engine casings, cylinder heads, pistons, and other structural components.
2. Titanium Alloys: Titanium alloys offer high strength-to-weight ratios and excellent resistance to heat, corrosion, and fatigue. They are often used in high-temperature areas, such as compressor blades, turbine blades, and exhaust systems.
3. Steel Alloys: Steel alloys, particularly stainless steel, are employed for components requiring high strength and durability. They are used in engine mounts, landing gear, and certain internal components like gears, shafts, and bearings.
4. Inconel Alloys: Inconel alloys are a group of nickel-based superalloys known for their exceptional resistance to heat, oxidation, and corrosion. They are commonly used in hot sections of the engine, including turbine blades, combustion chambers, and exhaust components.
5. Magnesium Alloys: Magnesium alloys are lightweight and offer good strength-to-weight ratios. However, they are more susceptible to corrosion compared to aluminum and titanium alloys. They are sometimes used in engine cowlings and other non-structural components.
6. Copper Alloys: Copper alloys, such as bronze and brass, are utilized for various engine components due to their good thermal conductivity, wear resistance, and corrosion resistance. They are often found in bearings, bushings, and electrical components.
These metals are carefully selected based on their properties, such as strength, weight, temperature resistance, and corrosion resistance, to ensure the engine's performance, reliability, and longevity.
