Fabrication of strong yet malleable bulk porous high entropy laves intermetallics via chemical immersion dealloying of eutectic high entropy alloys

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Detail(s)

Original languageEnglish
Article number114859
Journal / PublicationScripta Materialia
Volume219
Online published11 Jun 2022
Publication statusPublished - Oct 2022

Abstract

In this Letter, we fabricate porous high entropy intermetallic (HEI) with a Laves phase through chemical immersion dealloying of thermally annealed eutectic high entropy alloys in diluted aqua regia. The thermodynamics and kinetics of the chemical dealloying process were systematically investigated. Compared to the bulk HEI, the dealloyed HEI is malleable with an ultra-fine ligament size. Furthermore, our results clearly show that our porous HEI exhibits a specific strength higher than many porous metals reported so far.

Research Area(s)

  • Chemical dealloying, Eutectic high entropy alloy, High entropy intermetallics, Mechanical behavior

Citation Format(s)