4.6 Article

Mechanical Behavior of Cryomilled Ni Superalloy by Spark Plasma Sintering

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SPRINGER
DOI: 10.1007/s11661-009-9914-1

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Funding

  1. Office of Naval Research [N00014-1-06-0184]
  2. DOE Office of Basic Energy Sciences [DE-AC04-94AL85000]
  3. Division of Materials Science and Engineering
  4. Center for Integrated Nanotechnologies

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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-mu m 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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