<div class="csl-bib-body">
<div class="csl-entry">Hochenauer, R., & Lengauer, W. (2019). Characterisation and performance optimisation of WC-MC/M(C,N)-Co hardmetals. <i>Metals</i>, <i>9</i>(4), Article 435. https://doi.org/10.3390/met9040435</div>
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dc.identifier.issn
2075-4701
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/143234
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dc.description.abstract
WC-MC/M(C,N)-Co hardmetals with 10 wt% Co were prepared in undoped, as well as
in either Cr- or V-doped form. The starting formulations contained 5 wt% TiC or 5% (TiC+TiN),
the latter with two di erent TiC/TiN ratios, and 10 wt% (Ta,Nb)C. For each composition, a low-C
grade (Ms 75%) and a high-C grade (Ms 88%) was adjusted by C or W addition, to end
up with 18 di erent hardmetal formulations, prepared in an industrial process. Model alloys,
MC and M(C,N) phases with a composition reflecting the composition of these phases in the
hardmetal were prepared, too. A variety of data was collected: binder phase and hard phase
compositions of model alloys by wavelength-dispersive electron-probe microanalysis (WDS-EPMA),
liquid phase formation temperatures in model alloys with free C and eta by di erential thermal
analysis (DTA), respectively, thermal conductivities of MC and M(C,N) phases and hardmetals by
laser-flash temperature conductivity and heat capacity measurements up to 950 C, crystallite-size
distribution by electron backscatter di raction EBSD, hardness HV30, Palmqvist-Shetty fracture
toughness KIC,Weibull evaluation of the transverse rupture strength (TRS), oxidation resistance in air
as well as milling tests on coated hardmetals with Ti(C,N)/Al2O3 and (Ti,Al)N layers.
en
dc.language.iso
en
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dc.publisher
MDPI
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dc.relation.ispartof
Metals
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dc.subject
hardmetals
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dc.subject
General Materials Science
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dc.subject
tungsten carbide
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dc.subject
cemented carbides
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dc.subject
metal cutting
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dc.subject
Metals and Alloys
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dc.subject
cubic phases
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dc.subject
titanium carbide
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dc.title
Characterisation and performance optimisation of WC-MC/M(C,N)-Co hardmetals