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Mechanical Behavior of Cryomilled Ni Superalloy by Spark Plasma Sintering

  • Author(s): Zhang, Z.
  • Han, B.Q.
  • Huang, J.Y.
  • Han, Y.H.
  • Zhou, Y.
  • Kakegawa, K.
  • Lavernia, E.J.
  • et al.
Abstract

The mechanical behavior of ultra-fine-grained (UFG) INCONEL 625 superalloy prepared via cryomilling and spark plasma sintering (SPS) was studied. The work-hardening response of the ultra-fine-grained (600 to 700 nm) INCONEL 625 was compared to that of the material with a 1-μm grain size and the results showed normal work hardening for the latter material but not for the former. Moreover, the results suggest that a combination of high strength and good ductility can be simultaneously obtained in the UFG INCONEL 625 alloy.

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