Low cost high specific surface architectured nanoporous metal with corrosion resistance produced by liquid metal dealloying from commercial nickel superalloy. (1st April 2019)

• Record Type: Journal Article
• Authors: Mokhtari, Morgane; Wada, Takeshi; Le Bourlot, Christophe; Mary, Nicolas; Duchet-Rumeau, Jannick; Kato, Hidemi; Maire, Eric
• Is Part Of: Scripta materialia. Number 163(2019)
• Page Start: 5
• Page End: 8
• Publication Date: 2019-04-01
• Subjects: Dealloying -- Nickel superalloy -- Porous material -- Corrosion -- Iron alloys; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.12.023
• Languages: English
• ISSNs: 1359-6462

Abstract

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. Graphical abstract: Unlabelled Image