Q. Which country has developed ‘GRX-810’, a 3D printed superalloy?
Answer:
USA
Notes: The GRX-810 is a 3D printed superalloy developed by NASA scientists. It is an oxide-dispersion-strengthened NiCoCr-based alloy.
It showed over 1,000-fold better creep performance, twofold improvement in strength and twofold improvement in oxidation resistance when compared with the traditional polycrystalline wrought Ni-based alloys.