In the most demanding sections of aircraft engines and gas turbines, Nickel Based superalloys serve as irreplaceable critical materials. Take the K465 Nickel Based high-temperature alloy as an example—it can withstand extreme temperatures of 1050°C and is used long-term in turbine guide vanes. These components must maintain structural integrity and performance stability under sustained high temperatures and immense stress, requirements perfectly met by Nickel Based superalloys due to their unique properties.
Nickel Based superalloys are high-performance materials composed of a nickel matrix (typically over 50% nickel content) alloyed with multiple elements. They maintain exceptional properties in extreme environments exceeding 600°C, representing the most widely used and highest high-temperature strength category within the superalloy family. Based on strengthening mechanisms, Nickel Based superalloys are primarily classified into solution-strengthened and precipitation-hardened types.
The composition of Nickel Based superalloys is meticulously designed, typically incorporating elements such as nickel, chromium, cobalt, tungsten, molybdenum, aluminum, and titanium. For example, Inconel 617 alloy contains approximately 20% chromium and 50% nickel, while K465 alloy comprises 9.5-11% tungsten and 5.1-6% aluminum. Chromium primarily provides oxidation and corrosion resistance, aluminum and titanium form strengthening phases, and elements like tungsten and molybdenum contribute to solid solution strengthening. Nickel recycling companies focus on the nickel content within Nickel Based superalloys.
DONGSHENG Precious Metal Recycling company offer significantly higher prices for Nickel Based high-temperature alloy recycling compared to general high temperature alloy rates.
Nickel Based superalloys exhibit exceptional performance, particularly in high-temperature environments. They possess outstanding high-temperature strength, maintaining structural stability and mechanical properties within the 700°C to 1100°C range. For example, Inconel 617B achieves a creep strength of 120 MPa at 700°C after 100,000 hours. Additionally, these alloys offer outstanding oxidation and corrosion resistance alongside excellent creep resistance.
Nickel Based superalloys are extensively used in critical aerospace components such as turbine blades, guide vanes, turbine disks, and combustion chambers. In power generation, they serve in supercritical boilers operating at 700°C, including superheaters and reheaters, with grades like Inconel 617 and Haynes 230. Prices for Nickel Based superalloys range from tens to hundreds of dollars per kilogram depending on application requirements, composition, and form. Recycling prices for these alloys also exceed those of general alloys.
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