Iridium-based refractory superalloys by pulse electric current sintering process: Part 1. Elemental powder

C. Huang, Y. Yamabe-Mitarai, H. Harada

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Pulse electric current sintering (PECS) was tried as a novel powder metallurgy (PM) process for five Ir-based elemental powder mixtures. Sintering was carried out at 1800 °C for 4 h for all the samples. Specimens with a relative density, more than 90% theoretical density, were obtained after sintering. More than two phases were found; however, a single phase (L12 or B2) was expected, according to the phase diagram. The densification mechanism is discussed briefly, and remaining problems are presented.

Original languageEnglish
Pages (from-to)629-634
Number of pages6
JournalJournal of Materials Engineering and Performance
Volume10
Issue number6
DOIs
Publication statusPublished - 2001 Dec 1
Externally publishedYes

Keywords

  • Density
  • Elemental powder
  • Ir-based refractory superalloy
  • Microstructure
  • Phase
  • Pore
  • Powder metallurgy
  • Pulse electric current sintering

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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