A 3D printable alloy designed for extreme environments

Abstract Multiprincipal-element alloys are an enabling class of materials owing to their impressive mechanical and oxidation-resistant properties, especially in extreme environments 1,2 . Here we develop a new oxide-dispersion-strengthened NiCoCr-based alloy using a model-driven alloy design approach and laser-based additive manufacturing. This oxide-dispersion-strengthened alloy, called GRX-810, uses laser powder bed fusion to disperse nanoscale Y 2 O 3 particles throughout the microstructure without the use of resource-intensive processing steps such as mechanical or in situ alloying 3,4 . We show the successful incorporation and dispersion of nanoscale oxides throughout the GRX-810 build volume via…

• NS
  National Science Foundation

  Award: 1922239
• NA
  National Aeronautics and Space Administration
• AR
  Aeronautics Research Mission Directorate
• ST
  Space Technology Mission Directorate