Microstructural control of ultrafine and nanocrystalline WC–12Co–VC/Cr3C2 mixture by spark plasma sintering

Bonache, V.; Salvador, M. D.; Rocha, Victoria García; Borrell, Amparo

doi:10.1016/j.ceramint.2010.11.026

Cited by 65 publications

(23 citation statements)

References 18 publications

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“…Analysis of published work showed that spark plasma sintering [69][70][71][72][73][74][75][76] is the dominant technique to consolidate WCbased nanocomposites [18,22,35,42,59,60,[63][64][65][66][67][68][77][78][79][80]. However, processing these composites through other methods, such as selective laser sintering [36,37], pulsed current activated sintering [38], high-frequency induction heated Journal of Nanomaterials 13 combustion synthesis [39], high-frequency induction-heated sintering [38,41], electric-discharge compaction [43], pulsed electric current sintering [44], laser engineered net shaping [59], and high velocity oxy-fuel [59], remains an alternative way to produce WC-based nanocomposites with preserved nanostructure and improved properties.…”

Section: Mechanical Properties' Evaluationmentioning

confidence: 99%

The Synthesis of Nanostructured WC‐Based Hardmetals Using Mechanical Alloying and Their Direct Consolidation

Al-Aqeeli

Saheb

Laoui

et al. 2014

Journal of Nanomaterials

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Tungsten carbide- (WC-) based hardmetals or cemented carbides represent an important class of materials used in a wide range of industrial applications which primarily include cutting/drilling tools and wear resistant components. The introduction and processing of nanostructured WC-based cemented carbides and their subsequent consolidation to produce dense components have been the subject of several investigations. One of the attractive means of producing this class of materials is by mechanical alloying technique. However, one of the challenging issues in obtaining the right end-product is the possible loss of the nanocrystallite sizes due to the undesirable grain growth during powder sintering step. Many research groups have engaged in multiple projects aiming at exploring the right path of consolidating the nanostructured WC-based powders without substantially loosing the attained nanostructure. The present paper highlights some key issues related to powder synthesis and sintering of WC-based nanostructured materials using mechanical alloying. The path of directly consolidating the powders using nonconventional consolidation techniques will be addressed and some light will be shed on the advantageous use of such techniques. Cobalt-bonded hardmetals will be principally covered in this work along with an additional exposure of the use of other binders in the WC-based hardmetals.

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Section: Mechanical Properties' Evaluationmentioning

confidence: 99%

The Synthesis of Nanostructured WC‐Based Hardmetals Using Mechanical Alloying and Their Direct Consolidation

Al-Aqeeli

Saheb

Laoui

et al. 2014

Journal of Nanomaterials

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“…Tungsten carbide cermets are widely used in the machining, drilling, cutting, forming and mining tools fields where the high hardness, wear resistance and good strength are required [1][2][3]. Refining tungsten 2 carbides grain size can significantly improve the mechanical properties of the hardmetals [4,5].…”

Section: Introductionmentioning

confidence: 99%

Enhanced mechanical properties and oxidation resistance of tungsten carbide-cobalt cemented carbides with aluminum nitride additions

Lin

Zou

2017

Ceramics International

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“…has been used as the grain growth inhibitor during liquid sintering process [7][8][9][10] . In addition, in order to overcome the extensive coarsening of WC grain when nanometer sized WC-Co starting powder mixtures are sintered by the standard liquid phase sintering [11][12][13] special sintering methods such as microwave sintering [11] , hot isostatic pressing (HIP) [14] , and spark plasma sintering (SPS) [15,16] have been investigated to lower sintering temperature or to shorten sintering time. These special sintering methods have the problems of high cost and being unable to make complicated shaped parts.…”

Section: Introductionmentioning

confidence: 99%

Effects of Mo and Vc on the microstructure and properties of nano-cemented carbides

et al. 2016

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In this study, four unique groups of nano-cemented carbides with 8 wt.% Co and trace amount of Mo and VC have been successfully synthesized. The effect of Mo and VC has been investigated comprehensively on both the microstructure and mechanical behavior of nano-cemented carbide. The results show that Mo significantly increases hardness but decreases the fracture toughnesses and VC slightly increases hardness and strongly increases fracture toughness of nano-cemented carbide. It is found that the optimum Mo and VC contents are both 0.5 wt.%. The average WC grain size is about 370 nm. The hardness is about 2350 HV 30 and the fracture toughness is about 11.2 MPam -1/2 .

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Microstructural control of ultrafine and nanocrystalline WC–12Co–VC/Cr3C2 mixture by spark plasma sintering

Cited by 65 publications

References 18 publications

The Synthesis of Nanostructured WC‐Based Hardmetals Using Mechanical Alloying and Their Direct Consolidation

The Synthesis of Nanostructured WC‐Based Hardmetals Using Mechanical Alloying and Their Direct Consolidation

Enhanced mechanical properties and oxidation resistance of tungsten carbide-cobalt cemented carbides with aluminum nitride additions

Effects of Mo and Vc on the microstructure and properties of nano-cemented carbides

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