3D PRINTING OF INCONEL 617 ALLOY – Dr. Tomasz Stasiak
Title: 3D printing of Inconel 617 alloy in the form of thin tubes as heat exchanger components in Generation IV nuclear reactors and other high-temperature applications
This project aims to develop 3D printing of Inconel 617 alloy in the form of thin tubes for heat exchanger applications in Generation IV nuclear reactors, such as gas-cooled high-temperature reactors, as well as other high-temperature uses. Future Gen IV reactors will operate at temperatures up to 1000 °C, compared to 350 °C in current reactors, while the components will face significantly greater radiation damage. Inconel 617 is a well-known nickel-based superalloy with excellent high-temperature mechanical properties. In 2019, it became the first alloy in 30 years to be added to the ASME Boiler and Pressure Vessel Code (Section III, Division 5) for nuclear pressure equipment, confirming strong industry interest in its suitability for Gen IV reactor construction. The project will focus on 3D printing thin Inconel 617 tubes using selective laser melting (SLM) technology, as such geometries form the basis of heat exchangers in nuclear reactors and various industrial applications. Inconel 617 is difficult to machine conventionally due to significant work hardening, so 3D printing of complex shapes like tubes could resolve manufacturing challenges and substantially reduce costs. Achieving mechanical properties in SLM-printed components equal to or better than those obtained through conventional methods (casting and forming) will require optimization of the 3D printing parameters.
Project duration: 01.03.2026 – 31.08.2027
Budget: 99 600 PLN




