Global commercial space launches accounted for over 65% of all launches in 2025, while China has received filings for more than 250,000 low-orbit satellite constellations. Nickel-based superalloys, widely used in hot-end components such as rocket engine turbopumps and combustion chambers, are evolving from niche specialty materials to mainstream industrial supplies. The market now demands larger-scale powder production and consistently superior quality.
Superalloys maintain high strength, oxidation resistance and fatigue resistance above 600°C, which relies heavily on uniform microstructure. Inclusions in powder act as potential crack sources, undermining fatigue performance, high-temperature strength and component reliability. Hence, smelting purity is a decisive factor for material performance.
Traditional superalloy powder production faces three major challenges: precise control of oxygen, nitrogen and other impurities; prevention of active element loss; and elimination of ceramic contamination caused by conventional VIGA (Vacuum Induction Melting Gas Atomization) technology.
To address these issues, IMT applies EIGA (Electrode Induction Melting Inert Gas Atomization) technology to produce superalloy powder, achieving major breakthroughs in composition uniformity and batch consistency.
Crucible-free design: Completely eliminates ceramic inclusions at the source.
Accurate composition: Pre-manufactured electrode rods guarantee precise chemical composition. Instant atomization and solidification effectively prevent component segregation.
Low oxygen content: Full-process inert gas shielding keeps oxygen content at a low level.
Controllable particle size: Flexible atomization parameters deliver stable and optimized powder properties.
Compared with VIGA, EIGA-produced superalloy powder excels in key performance indicators. Verified via multiple production batches, it features stable composition and flowability, fully meeting the manufacturing requirements of high-end equipment including aerospace devices, nuclear power facilities and gas turbines.
The booming commercial space industry drives large-scale industrial application of superalloy powder. Atomization technology has become a core benchmark for material grading. IMT will continue to optimize EIGA technology and supply ultra-clean, highly stable alloy powder for downstream industries.
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