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High Entropy Alloy As Binder In Hard Materials

  • : Paula Alvaredo Olmos1, Estela Prieto1, María De Nicolás1, Juan Cornide1, Elena Gordo1
  • : 1Universidad Carlos III de Madrid
  • : PDF Download
  • : 2018

Abstract

High entropy alloys show two characteristics that make them very attractive as possible candidates for alternative binders in hard materials: the ability to form a single solid solution from a high number of alloying elements and the capacity to tailor their composition to adjust the properties for a specific application.

In this work the gas atomized alloy CrCoFeNi is proposed as a new binder for both cermets and cemented carbides. Its viability as an alternative binder is evaluated through thermodynamic and kinetic simulation together with studies of high temperature wetting behavior to know the wetting and dissolving characteristics on the most commonly used ceramic phases TiCN and WC. After the processing of the samples it can be concluded that this new composition open a wide range of possibilities in the field of searching for alternative binders in hard materials.

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