Common materials used in modern jet engines.

 Common materials used in modern jet engines.

Material	Component Used	Key Properties	Purpose
Titanium alloys	Fan blades, compressor	High strength-to-weight ratio, corrosion-resistant	Lightweight and strong for high-speed rotation
Nickel-based superalloys	Turbine blades, combustion chamber	High-temperature resistance, creep-resistant	Maintains integrity under extreme heat
Stainless steel	Compressor discs, casings	High-strength, corrosion-resistant	Durable and resistant to environmental factors
Aluminium alloys	Low-pressure fan	Lightweight, moderate strength	Reduces overall engine weight
Ceramics	Turbine coatings	High thermal resistance, low thermal conductivity	Insulates and protects metal components
Carbon composites	Fan blades, ducts	Lightweight, high fatigue resistance	Reduces weight while retaining strength
Cobalt-based superalloys	Hot section parts	Excellent oxidation and wear resistance	Enhances durability in extreme heat
Inconel	Combustion chambers	Corrosion-resistant, high tensile strength	Withstands high temperatures and stresses
Tantalum alloys	Combustion chamber liners	High thermal stability	Enhances heat resistance
Silicon carbide (SiC)	Turbine components	High-temperature and chemical resistance	Enables higher operating temperatures
Polymeric composites	Fan casings, nacelles	Lightweight, impact-resistant	Improves efficiency and safety
Titanium aluminides	Low-pressure turbine blades	High-temperature strength, low density	Improves efficiency in low-pressure sections
Magnesium alloys	Gearbox components	Lightweight, moderate strength	Reduces weight in less critical areas
Molybdenum alloys	Structural components	High-temperature strength, wear-resistant	Adds strength in critical structural areas
Glass-reinforced composites	Radomes, fairings	Transparent to radar, lightweight	Optimizes aerodynamics and radar visibility