Effects of TiC Content on the Microstructure and Mechanical Property of WC-TiC-TaC Cemented Carbides

Gao, Jiaojiao; Jiang, Longkai; Song, Jiancheng; Liang, Guoxing; An, Jing; Xie, Juncai; Cao, Liqin; Liu, Ming

doi:10.15541/jim20160633

Cited by 11 publications

(5 citation statements)

References 19 publications

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“…Obviously, TiC was beneficial to enhance the relative density of WC-TiC composites. The densification mechanism was that TiC acted as a carbide binder resulting from the formation of WC-TiC solid solution phase [80][81][82][83]. As shown in Fig.…”

Section: Titanium Carbide (Tic)mentioning

confidence: 99%

A Review on Binderless Tungsten Carbide: Development and Application

et al. 2019

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HIGHLIGHTS• Establish processing-composition-microstructure-property relationships governing binderless tungsten carbide (BTC).• Highlight the densification improving strategies and toughening methods for BTC.• Provide key challenges as well as the outlook for superior peformance associated with BTC.ABSTRACT WC-Co alloys have enjoyed great practical significance owing to their excellent properties during the past decades. Despite the advantages, however, recently there have been concerns about the challenges associated with the use of Co, i.e. price instability, toxicity and properties degeneration, which necessitates the fabrication of binderless tungsten carbide (BTC). On the other hand, BTC or BTC composites, none of them, to date has been commercialized and produced on an industrial scale, but only used to a limited extent for specialized applications, such as mechanical seals undergoing high burthen as well as high temperature electrical contacts. There are two challenges in developing BTC: fully densifying the sintered body together with achieving a high toughness. Thus, this review applies towards comprehensively summarize the current knowledge of sintering behavior, microstructure, and mechanical properties of BTC, highlighting the densification improving strategies as well as toughening methods, so as to provide reference for those who would like to enhance the performance of BTC with better reliability advancing them to further wide applications and prepare the material in a way that is environment friendly, harmless to human health and low in production cost. This paper shows that the fabrication of highly dense and high-performance BTC is economically and technically feasible. The properties of BTC can be tailored by judiciously selecting the chemical composition coupled with taking into careful account the effects of processing techniques and parameters.

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Section: Titanium Carbide (Tic)mentioning

confidence: 99%

A Review on Binderless Tungsten Carbide: Development and Application

et al. 2019

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“…Some carbides, nitrides, or oxides with high hardness and chemical stability have been added to WC‐based cemented carbides to improve the high‐temperature hardness, oxidation resistance, and corrosion resistance 11–13 . Transition metal carbides, such as VC, Mo 2 C, NbC, TiC, and TaC, can enhance their toughness through the second‐phase toughening mechanism while maintaining their high hardness 1,3,14,15 . When 20 at.% TiC was added to WC, the cemented carbide exhibited a toughness of 7.5 MPa·m 1/2 and a hardness of 22.40 GPa 14 .…”

Section: Introductionmentioning

confidence: 99%

“…[11][12][13] Transition metal carbides, such as VC, Mo 2 C, NbC, TiC, and TaC, can enhance their toughness through the second-phase toughening mechanism while maintaining their high hardness. 1,3,14,15 When 20 at.% TiC was added to WC, the cemented carbide exhibited a toughness of 7.5 MPa⋅m 1/2 and a hardness of 22.40 GPa. 14 When transition group metal carbides and Co are added together, WC-based cemented carbides can become tough and retain a good hardness.…”

Section: Introductionmentioning

confidence: 99%

“…1,3,14,15 When 20 at.% TiC was added to WC, the cemented carbide exhibited a toughness of 7.5 MPa⋅m 1/2 and a hardness of 22.40 GPa. 14 When transition group metal carbides and Co are added together, WC-based cemented carbides can become tough and retain a good hardness. Huang et al 16 prepared WC-12 wt.% Co cemented carbides with different NbC and VC contents.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Nb/TiC/TaC/VC and Co addition on the microstructure and properties of WC‐based cemented carbides

Zhai

Peng

et al. 2023

Int J Applied Ceramic Tech

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A series of WC‐based cemented carbides with Nb/TiC/TaC/VC and Co was prepared through spark plasma sintering (SPS) at a low sintering temperature of 1300°C, and their microstructures and mechanical properties were investigated. The nonstoichiometric multicomponent carbide Nb/TiC/TaC/VC with a rock‐salt structure (Fmtrue3¯m$Fm\bar{3}m$) has a high atomic solution capacity. In the sintering process, partial WC and Co may dissolve in Nb/TiC/TaC/VC. With a high concentration of carbon vacancies, Nb/TiC/TaC/VC plays a beneficial role as a mass transfer intermediary. Good mass transfer facilitates the formation of a more accommodating and stable bonding between WC, Nb/TiC/TaC/VC, and Co, thereby preserving the hardness of the sintered bulks and preventing the initiation and propagation of cracks. When 6 wt.% Nb/TiC/TaC/VC and 4 wt.% Co are added to WC, the sintered bulk with fine grains exhibits superior hardness (23.27 ± .63 GPa) and toughness (10.45 ± .56 MPa·m1/2).

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“…In particular, titanium carbide, which has superior wear resistance, higher hardness, and lower cost compared with tungsten carbide, is currently being extensively investigated for different applications. However, the poor wetting behavior of titanium carbide with iron-group elements affects its application [ 6 , 7 , 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Chromium Carbide Addition on the Microstructures and Properties in Dual Carbide Phases Reinforced Ni-Based Composite Coatings by Plasma Cladding

Geng

Zhang²,

Jun

et al. 2023

Materials

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Cr3C2-modified NiCr–TiC composite coatings were prepared using the plasma spraying technique for different Cr3C2 contents on the microstructure and the properties of the Ni-based TiC cladding layer were investigated. The microstructures of the coatings were characterized using scanning electron microscopy, and the friction and wear performance of the coating was evaluated by the wear tests. The results revealed that the surfaces of the Cr3C2-modified NiCr–TiC composite coatings with varying Cr3C2 contents were dense and smooth. TiC was uniformly distributed throughout the entire coating, forming a gradient interface between the binder phase of the Ni-based alloy and the hard phase of TiC. At high temperatures, Cr3C2 decomposes, with some chromium diffusing and forming complex carbides around TiC, some chromium solubilizes with Fe, Ni, and other elements. An increase in chromium carbide content leads to an upward trend in hardness. The measured hardness of the coatings ranged from 600 to 850 HV3 and tended to increase with increasing Cr3C2 content. When the mass fraction of Cr3C2 reached 30%, the hardness increased to 850 HV3, and the cracks and defects were observed in the coating, resulting in a wear resistance decline.

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Effects of TiC Content on the Microstructure and Mechanical Property of WC-TiC-TaC Cemented Carbides

Cited by 11 publications

References 19 publications

A Review on Binderless Tungsten Carbide: Development and Application

A Review on Binderless Tungsten Carbide: Development and Application

Effects of Nb/TiC/TaC/VC and Co addition on the microstructure and properties of WC‐based cemented carbides

Effect of Chromium Carbide Addition on the Microstructures and Properties in Dual Carbide Phases Reinforced Ni-Based Composite Coatings by Plasma Cladding

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