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Study Of The Interface Between The Capsule And The Alloy During A Net Shape HIPping Of Ni-superalloy

  • : Emilio Bassini1, Valeria Vola1, Massimo Lorusso2, Rudy Ghisleni3, Sara Biamino1
  • : 1Politecnico di Torino, 2Istituto Italiano di Tecnologia, 3Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM)
  • : PDF Download
  • : 2017

Abstract

The use of Hot Isostatic Pressing (HIP) technology for directly forming components to a near net or net shape (NNSHIP or NSHIP) is currently depending on the possibility to limit the interaction between the capsule and the powder mass. The capsule is typically made of low carbon steel and its main role is to efficiently transfer the forming pressure at HIP temperature to the consolidating powder mass. However, at the powder mass/capsule interface elements inter-diffusion occurs. This study reports of the consequences of such diffusion during the consolidation via HIP of a Ni super-alloy, Astroloy.

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