Influence of different binder metals in high entropy carbide based hardmetals

ABSTRACT

High-entropy carbides (HEC) are a class of promising new hard phases for a sustainable improvement of hardmetal properties. In this work, hardmetals of the HEC (Ta,Nb,Ti,V,W)C were studied with two typical binder volume fractions of 16 and 24 vol-% consisting of Co, Ni and FeNi. The sintering behaviour, microstructure, phase composition, magnetic and mechanical properties are discussed and are compared to a conventional WC-Co hardmetal. It was shown that the HEC has a high-phase stability and that dense hardmetals with promising mechanical properties were obtained.

KEYWORDS:

• Hardmetals
• cermets
• cemented carbides
• high-entropy carbide
• HEC

Acknowledgements

The authors are responsible for the content of this publication. The authors would like to thank Susan Conze for the analysis of the XRD data.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by the German Bundesministerium für Bildung und Forschung: [Grant Number L1FHG42421].