Fabrication of WC-Co/(Ti, W)C graded cemented carbide by spark plasma sintering

Zhou, Hanxiang; Wang, Zhenhua; Wang, Boxiang

doi:10.1016/j.ijrmhm.2019.105141

Cited by 18 publications

(6 citation statements)

References 36 publications

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“…The most commonly used molds/punches are considered to be of graphite for most of the composites and generally graphite sheets are used as a shroud between the sample and the mold-die punch to prevent the sticking of the sample and mold/punch for further use. 11,[68][69][70][71][72][73][74][78][79][80][81][82][83][84][85][86][87][88] The SPS process is entirely divided into four main stages which are (a) removal of gases from the chamber and generation of vacuum, (b) the two intermediate stages involves the simultaneous application of resistance heating and applied pressure, (c) cooling of sintered samples. 75 The existence of spark plasma and the occurrence of discharge have been a controversial issue and highly debatable in SPS sintering process.…”

Section: Sinteringmentioning

confidence: 99%

“…SPS is an advanced and novel method of sintering process that offers many advantages over conventional sintering techniques such as higher heating rates, shorter holding times, and comparatively lower sintering temperatures. 73–94 The typical SPS system consists of a mechanical loading system, an electric current generator, vacuum/atmosphere chamber, and a water cooling apparatus as shown in Figure 3. 67…”

Section: Review Of Literaturesmentioning

confidence: 99%

Section: Review Of Literaturesmentioning

confidence: 99%

“…Zhou et al 79 in 2020 sintered a functionally graded cemented carbide. Fabrication of WC-Co/(Ti, W) C, the substrate being WC-8Co while the hard layer being (Ti, W) C solid-solution was done using SPS.…”

Section: Review Of Literaturesmentioning

confidence: 99%

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A review of fabrication and properties of spark plasma sintered tungsten carbide based advanced composites

Dar

Sheikh

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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The high-performance tool materials have been inevitably used for most of the cutting tool applications where high reliability and difficult to cut materials are of major demand. The cemented carbides and its composites offer an excellent combination of the properties where it can be used for tool materials due to its high wear resistance, high hardness at elevated temperatures, and considerable fracture toughness. However to obtain optimum values of mechanical properties and uniformly distributed ultrafine grains, a number of new fabrication techniques, alteration in the content of cemented carbide composition, and variation in the parameters of fabrication process have been employed. This review paper will come in handy for researchers and scientists working on advanced cemented carbides and spark plasma sintering as it overviews the recent work done on tungsten carbide composites using the novel spark plasma sintering technique considering different process parameters in order to achieve ultrafine microstructures of sintered specimens, enhanced mechanical properties of composites in addition to energy as well as time saving considerations. The thorough review of various research papers revealed that the parameters of the sintering (sintering temperature, applied pressure, surrounding environment), additives in sintering (both content and composition), reinforcement of cemented carbide with other materials, nano-filler/whisker addition, partial or complete removal of metallic phase from the cemented carbide affect the properties of sintered specimens and their calculated as well as optimum setting can provide an excellent combination of properties desired in cutting tool operations.

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Section: Sinteringmentioning

confidence: 99%

Section: Review Of Literaturesmentioning

confidence: 99%

Section: Review Of Literaturesmentioning

confidence: 99%

Section: Review Of Literaturesmentioning

confidence: 99%

See 2 more Smart Citations

A review of fabrication and properties of spark plasma sintered tungsten carbide based advanced composites

Dar

Sheikh

2021

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…10 This approach combines plasma activation, hot pressing, and resistance heating, has the advantages of fast heating and rapid cooling, and is superior for preparing functionally graded materials (FGMs) 11 and cermet composites. Zhou et al 12 successfully prepared a WC-Co-(Ti,W)C gradient cermet material using SPS. SPS can accelerate the dissolution of WC in the metallic Co phase, followed by a solid solution reaction with TiC.…”

Section: Introductionmentioning

confidence: 99%

Performance gradient distribution of (Ti,W)C cermet by skin effects of high‐frequency spark plasma sintering

Wang

Song

et al. 2022

J Am Ceram Soc.

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A (Ti,W)C cermet with graded properties was prepared using high‐frequency spark plasma sintering (HF‐SPS). The effects of the sintering process on the microstructure and mechanical properties of the prepared cermet material were studied, and the densification behavior of the material was analyzed using scanning electron microscopy and energy‐dispersive X‐ray spectroscopy. Owing to the skin effect and pulse current discharge in HF‐SPS, the experimental results showed different sintering effects, as indicated by the current density difference between the surface layer and bulk. On one hand, the surface‐layer grains were larger, the metal phase was concentrated, and the hardness was high; however, the bulk grains were smaller, the metal phase was uniformly distributed, and the strength and toughness were high, causing the material to account for the higher hardness of the surface layer and the bulk strength and toughness. The skin effect of pulse direct current was key for the performance gradient distribution, whereas increases in the current density and sintering temperature decreased the skin effect. In general, the Joule heat effect was more significant, leading to abnormal grain growth.

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The Development of Cemented Carbide with Cobalt Composition Gradient by Powder Metallurgy Method

Parihar¹,

Verma²

2022

Lecture Notes in Mechanical Engineering

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Fabrication of WC-Co/(Ti, W)C graded cemented carbide by spark plasma sintering

Cited by 18 publications

References 36 publications

A review of fabrication and properties of spark plasma sintered tungsten carbide based advanced composites

A review of fabrication and properties of spark plasma sintered tungsten carbide based advanced composites

Performance gradient distribution of (Ti,W)C cermet by skin effects of high‐frequency spark plasma sintering

The Development of Cemented Carbide with Cobalt Composition Gradient by Powder Metallurgy Method

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