University of North Dakota to 3D Print Nuclear Reactor Components

Additive manufacturing is known for producing complex parts that are subject to many safety and efficiency requirements. In the case of nuclear reactors, the importance of detail is paramount, and 3D printing has proven itself in the past. For example, Oak Ridge National Laboratory (ORNL) already has a number of projects combining the two, for example installing 3D printed parts at an Alabaman nuclear plant in 2021. Moreover, this in and of itself, builds upon their own work in 2020 when they designed the first ever 3D printed nuclear. it should be noted as well that for the creation of these parts, metal 3D printing seems to be the most popular and reliable method.

Now, at the University of North Dakota (UND), Roy Sougata, a mechanical engineering professor has received funding to research new solutions for fabricating components and integrating them into nuclear reactors. Nearly $250,000 was awarded to him by the National Science Foundation to study how additive manufacturing processes can be harnessed to design these parts.

Austenitic steel will be used as the main material (photo credits: Dr K. Natesan)

3D Printed Nuclear Reactors Made of Reinforced Steel

To make these 3D printed nuclear reactor components, Roy Sougata and his team of researchers will use austenitic steel. The metal alloy is reinforced with nitrogen, and will be used as the primary raw material in the construction process. For the moment, no information has been given about the 3D printer used. The idea is to see if these 3D printed components are more efficient than those designed in the traditional way. Sougata expanded, “Different research groups are trying to make the components using additive manufacturing. Conventionally, these components are made through casting or wrought-iron forging, but you cannot tweak the mechanical properties or the microstructure properly. In additive manufacturing, we have lot more grip on that.”