Hot Isostatic Pressing of IN625: Effect of Powder Production Type on Microstructure and Mechanical Properties

R. H.U. Khan, A. Sergi, M. M. Attallah

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Near net shape powder metallurgy hot isostatic pressing (NNS PM HIP), is becoming a widely recognised manufacturing process due to its capability of producing fully dense complex parts with isotropic mechanical properties. Pre-alloyed metal powders produced by various powder production methods can greatly affect microstructure and the mechanical properties of NNS PM HIP parts. In this work, HIP response of IN625 powders produced by four different atomisation methods ie water atomised, nitrogen gas atomised, argon gas atomised and plasma atomised, were assessed. Powders were fully characterised to assess their chemical composition, flowability, apparent, tap & packing densities, particle size distribution and surface morphology. All four IN625 powders were HIPed to assess their microstructure and the mechanical properties to down select the best powder for NNS PM HIP parts manufacturing.

Original languageEnglish
Title of host publicationProceedings - Euro PM2020 Congress and Exhibition
PublisherEuropean Powder Metallurgy Association (EPMA)
ISBN (Electronic)9781899072514
Publication statusPublished - 2020
EventEuropean Powder Metallurgy Congress and Exhibition, Euro PM 2020 - Virtual, Online
Duration: 5 Oct 20207 Oct 2020

Publication series

NameProceedings - Euro PM2020 Congress and Exhibition

Conference

ConferenceEuropean Powder Metallurgy Congress and Exhibition, Euro PM 2020
CityVirtual, Online
Period5/10/207/10/20

Bibliographical note

Funding Information:
The authors warmly thank the EU H2020 and the ?Sustainable Process Industry through Resource and Energy Efficiency? (SPIRE) programs, who fund the SUPREME project under grant agreement no 768612. The authors also acknowledge the financial support provided by Centre of Doctoral Training in Innovative Metal Processing (IMPaCT) funded by the Engineering and Physical Sciences Research Council (EPSRC). This work was enabled through the National Structural Integrity Research Centre (NSIRC).

Funding Information:
The authors warmly thank the EU H2020 and the “Sustainable Process Industry through Resource and Energy Efficiency” (SPIRE) programs, who fund the SUPREME project under grant agreement no 768612. The authors also acknowledge the financial support provided by Centre of Doctoral Training in Innovative Metal Processing (IMPaCT) funded by the Engineering and Physical Sciences Research Council (EPSRC). This work was enabled through the National Structural Integrity Research Centre (NSIRC).

Publisher Copyright:
© European Powder Metallurgy Association (EPMA)

Keywords

  • IN625 powders
  • Mechanical properties
  • Microstructure
  • NNS PM HIP
  • Oxygen content

ASJC Scopus subject areas

  • Mechanics of Materials
  • Metals and Alloys

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