Inconel® 718 Disk

Inconel® 718 Disk is a nickel–chromium–iron–niobium–molybdenum alloy that combines outstanding high-temperature strength, fatigue resistance, and corrosion tolerance. The disk form is ideal for components requiring dimensional stability and surface reliability under severe thermal and mechanical cycling. It is widely utilized in aerospace, power generation, and petrochemical industries, where turbine disks, compressor seals, and pressure-retaining components must endure extreme service conditions. Specific applications include turbine engine compressor disks, wear-resistant seals in reactors, and rotating machinery parts operating under high mechanical loads. Research has examined its machining behavior, surface integrity during turning, and wear resistance improvements through plasma nitriding, as well as microstructural evolution of the white layer formed during finishing. These studies highlight the alloy’s importance in ensuring durability and performance of critical rotating systems. By offering a balance of mechanical resilience, corrosion resistance, and machinability, Inconel® 718 Disk remains a vital material in advancing both scientific research and industrial technologies.