Three-dimensional open-cell macroporous iron, chromium and ferritic stainless steel

Takeshi Wada; Hidemi Kato

doi:10.1016/j.scriptamat.2013.01.011

Three-dimensional open-cell macroporous iron, chromium and ferritic stainless steel

Takeshi Wada, Hidemi Kato

Materials Development Division

Research output: Contribution to journal › Article › peer-review

78 Citations (Scopus)

Abstract

Open-cell macroporous Fe, Cr and their alloys were prepared by dealloying with a metallic melt. By immersing (Fe, Cr)₃₀Ni₇₀ precursors in a Mg melt, Ni selectively dissolved into the Mg and the remaining components formed a bicontinuous structure. Analyses of the thermal coarsening in the melt reveal that evolution of the porous structure is controlled by interfacial diffusion between the melt and precursor solid. The underlying mechanism for the nanoporous structure formation is therefore the same as that in aqueous solution.

Original language	English
Pages (from-to)	723-726
Number of pages	4
Journal	Scripta Materialia
Volume	68
Issue number	9
DOIs	https://doi.org/10.1016/j.scriptamat.2013.01.011
Publication status	Published - 2013

Keywords

Dealloying
Foam
Iron alloys
Porous material

ASJC Scopus subject areas

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

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10.1016/j.scriptamat.2013.01.011

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AB - Open-cell macroporous Fe, Cr and their alloys were prepared by dealloying with a metallic melt. By immersing (Fe, Cr)30Ni70 precursors in a Mg melt, Ni selectively dissolved into the Mg and the remaining components formed a bicontinuous structure. Analyses of the thermal coarsening in the melt reveal that evolution of the porous structure is controlled by interfacial diffusion between the melt and precursor solid. The underlying mechanism for the nanoporous structure formation is therefore the same as that in aqueous solution.

KW - Dealloying

KW - Foam

KW - Iron alloys

KW - Porous material

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Three-dimensional open-cell macroporous iron, chromium and ferritic stainless steel

Abstract

Keywords

ASJC Scopus subject areas

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