There's more to hard materials than tungsten carbide alone

Brookes, Ken

doi:10.1016/s0026-0657(11)70062-5

Cited by 10 publications

(7 citation statements)

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“…Such toughness level is comparable to that exhibited by commercial cemented carbides with alternative binders (although containing Co) [50]. This can be described as a quite promising result towards overcoming one of the traditional disadvantages of cermets, i.e.…”

Section: Planetary Milling (Hm)supporting

confidence: 61%

Ti(C,N)-Fe15Ni10Cr cermets as alternative hard materials: Influence of the processing route and composition on their microstructure and properties

Nicolás

Besharatloo

Pereira

et al. 2021

Ceramics International

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Section: Planetary Milling (Hm)supporting

confidence: 61%

Ti(C,N)-Fe15Ni10Cr cermets as alternative hard materials: Influence of the processing route and composition on their microstructure and properties

Nicolás

Besharatloo

Pereira

et al. 2021

Ceramics International

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“…However, one of the majors trends in hardmetals industry is focused in finding new binder phases to replace cobalt [2,3]. Main reasons for this are the toxicity of cobalt, the improvement of the performance under severe working conditions, the requirement to find simpler manufacturing techniques and cobalt price increase and fluctuation [3,4].…”

Section: Introductionmentioning

confidence: 99%

Fracture and fatigue behavior of WC–Co and WC–CoNi cemented carbides

Tarragó

Roa

Valle

et al. 2015

International Journal of Refractory Metals and Hard Materials

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The fracture and fatigue characteristics of several cemented carbide grades are investigated as a function of their microstructure. In doing so, the influence of binder chemical nature and content (Co and 76 wt% Co-24 wt% Ni), as well as carbide grain size on hardness, flexural strength, fracture toughness and fatigue crack growth (FCG) behavior is evaluated. Mechanical testing is combined with a detailed inspection of crack-microstructure interaction, by means of scanning electron microscopy, in order to evaluate crack-path tortuosity and to discern fracture and fatigue micromechanisms within the metallic binder. Results show that CoNi-base hardmetals exhibit slightly lower hardness but higher toughness values than Co-base grades. Meanwhile, flexural strength is found to be rather independent of the binder chemical nature. Regarding FCG behavior, experimental results indicate that: (1) FCG threshold (K th ) values for coarse-grained grades are higher than those measured for the medium-grained ones; and (2) fatigue sensitivity levels exhibited by CoNi-and Co-base cemented carbides, for a given binder mean free path, are similar. These findings are rationalized on the basis of the increasing relevance of crack deflection mechanisms as microstructure gets coarser and the evidence of similar fatigue degradation phenomena within the binder independent of its chemical nature, respectively.

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“…Common bulk materials for cutting tools are cemented carbides [2] and polycrystalline cubic boron nitride (PCBN) [3]. As commercial cutting tools with TiSiN coatings often consist of cemented tungsten carbide (WC-Co), it was chosen as the substrate in Papers I and II, so as to replicate the growth conditions of such commercial coatings.…”

Section: Bulk Materials and Substratesmentioning

confidence: 99%