Nanostructured WC - Co hardmetal as reference material for high hardness range

Aleksandrov Fabijanić, Tamara and Alar, Željko (2015) Nanostructured WC - Co hardmetal as reference material for high hardness range. = Nanostructured WC - Co hardmetal as reference material for high hardness range. In: EURO PM2015 congress&exhibition, Reims, Francuska.

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Abstract

Preliminary reference Vickers hardness blocks were developed in order to ensure measurement traceability for the hardness values of approximately 2000 HV, as well as to enlarge the spectrum of materials and processes of manufacture. Reference Vickers hardness blocks were consolidated by sinter-HIP process in one cycle. Newly developed tungsten carbide nanopowder with an average grain size of dBET=150 nm and a specific surface area (BET) of 2.5 m2/g was used as starting material for the production of nanostructured hardmetal. The achieved superior properties reduce hardness non-uniformity of the block surface, measurement uncertainty of reference Vickers hardness block calibration and consequently the measurement of hardness in general.

Item Type: Conference or Workshop Item (Poster)
Keywords (Croatian): reference hardness block, Vickers hardness, nanostructured WC-Co hardmetal, hardness uniformity
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 1000 Department of Materials > 1010 Chair of Materials and Tribology
Date Deposited: 21 Sep 2016 13:42
Last Modified: 21 Sep 2016 13:42
URI: http://repozitorij.fsb.hr/id/eprint/6768

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