Consolidation of binderless WC–TiC by high frequency induction heating sintering

Kim, Hwan‐Cheol; Kim, Yon Su; Woo, Kee-Do; Ko, In-Yong; Shon, In-Jin

doi:10.1016/j.ijrmhm.2007.01.006

Cited by 113 publications

(25 citation statements)

References 14 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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“…In order to prevent severe grain growth and to shorten the sintering time, field-assisted sintering techniques, which include microwave sintering (Luo et al, 2011), plasma spark sintering (SPS) (Zadra et al, 2008) and induction sintering (Dewidar, 2010;Jia and Gabbitas, 2015), are receiving much attention. Among these techniques, induction sintering has been previously studied to fabricate Fe-based materials (Çavdar and Atik, 2014;Hermel et al, 1980;Krumphold et al, 1984;Salak et al, 1981) and hardmetals (Kim et al, 2008;Shon et al, 2009;Shon et al, 2010;Shon et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of reactive induction sintering as a manufacturing route for blended elemental Ti-5Al-2.5Fe alloy

Jia

Gabbitas

Bolzoni

2018

Journal of Materials Processing Technology

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This work focuses on understanding the feasibility of using reactive induction sintering to obtain the Ti-5Al-2.5Fe alloy using Ti, Al and Fe powders (i.e. via the blended elemental approach). For that, the powder compacts were induction sintered under various temperature/time combinations like 700-1250 o C and isothermal holding of 0-15 minutes. Compositional homogeneity, microstructure evolution and mechanical properties of the sintered Ti-5Al-2.5Fe alloy were investigated. It was found that by increasing sintering temperature and isothermal holding time, sintered Ti-5Al-2.5Fe components with homogeneous chemical distribution and Widmanstätten microstructure can be produced. The tensile strength increases with the sintering temperature/time reaching comparable values to the wrought alloy; however the residual porosity has a significant impact on the ductility of the alloy. The study demonstrates that reactive induction sintering is suitable to shorten the production route of blended elemental Ti alloys to be used in non-critical applications where ductility is not the main material's requirement.

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“…In addition, the continuing trend of saving the rare, expensive and strategic resource of Co requires the development of novel WC matrix materials with high mechanical properties. In the recent years, WC-TiC [4], WC-ZrO 2 [5], WC-FeCl 3 [6], WC-MgO [7,8] composites have been consolidated to save the resource of Co.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and mechanical properties of WC–40vol%Al2O3 composites hot pressed with MgO and CeO2 additives

Qu¹,

Zhu²,

Di³

et al. 2013

Ceramics International

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Consolidation of binderless WC–TiC by high frequency induction heating sintering

Cited by 113 publications

References 14 publications

A Review on Binderless Tungsten Carbide: Development and Application

A Review on Binderless Tungsten Carbide: Development and Application

Evaluation of reactive induction sintering as a manufacturing route for blended elemental Ti-5Al-2.5Fe alloy

Microstructure and mechanical properties of WC–40vol%Al2O3 composites hot pressed with MgO and CeO2 additives

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