Low cost high specific surface architectured nanoporous metal with corrosion resistance produced by liquid metal dealloying from commercial nickel superalloy

Morgane Mokhtari, Takeshi Wada, Christophe Le Bourlot, Nicolas Mary, Jannick Duchet-Rumeau, Hidemi Kato, Eric Maire

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Liquids metal dealloying is a new technology to create porous materials. In this study, a commercial Incoloy 825 nickel superalloy is dealloyed for 1 h at 3 different temperatures to elaborate a fully porous FeCr-based metal with 3 different porous microstructures. The resulting porous metals showed unimodal pore distribution, hierarchical structure or, contain large ligaments inclusions. The passivation ability of the porous material was conformed irrespective of the microstructure. This letter proves the possibility of fabricating low cost high specific surface materials for electrochemical applications.

Original languageEnglish
Pages (from-to)5-8
Number of pages4
JournalScripta Materialia
Volume163
DOIs
Publication statusPublished - 2019 Apr 1

Keywords

  • Corrosion
  • Dealloying
  • Iron alloys
  • Nickel superalloy
  • Porous material

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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