Oxidation behavior of WC–Co cemented carbide in elevated temperature

Liu, Shoufa

doi:10.1088/2053-1591/aad535

Cited by 9 publications

(5 citation statements)

References 22 publications

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“…Meanwhile, 15.1% of the articles have approximated the oxidation behavior of WC-cemented carbides linearly [3,11,17,20,51,69,71]. As illustrated in Figure 6, in 15.1% of the reviewed articles, the trend of mass changes over time has been estimated by a combination of linear and parabolic functions [2,8,16,33,34,52,57,67,68]. Note that under a parabolic approximation based on the experimental results, the general mass gain-time equation (∆m n = kt) converts to the parabolic function ∆m 2 = kt, while we have ∆m = k ′ t for the linear behavior case.…”

Section: Statistical Discussionmentioning

confidence: 99%

“…Moreover, according to Basu and Sarin [15], to a certain extent, as the weight percentage of cobalt binder increases, the oxidation resistance of tungsten carbide improves. In some studies on improving the oxidation resistance of cemented carbides, cobalt was still used as a conventional binder [9,11,20,[33][34][35]39,52,53,57,58,68,69,71,77,78]. The reasons for this are explained in the results and discussion section.…”

Section: Type Of Bindermentioning

confidence: 99%

“…Investigation of oxidation kinetics and modeling the mass increment per surface unit over time in tungsten carbide cermets has been carried out in some research work [2,8,11,[16][17][18][19][20][33][34][35]39,43,51,52,57,63,[67][68][69]71,79,97]. Equations that model the mass changes per surface unit are classified into parabolic, linear, a combination of linear and parabolic, etc.…”

Section: Kinetics Of Oxidationmentioning

confidence: 99%

“…This method can be used for the production of cermets and ceramics, and even improving the mechanical properties of advanced alloys [66]. This method has been used to consolidate samples in research on tungsten carbide oxidation [67][68][69][70][71][72].…”

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confidence: 99%

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Effect of Binder on Oxidation Properties of Tungsten Carbides: A Review by a Conceptual Classification Approach

Fathipour,

Hadi,

Maleki

et al. 2024

Ceramics

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This study presents a conceptual classification scheme to review the literature on improving the oxidation resistance of tungsten carbide by modifying the binder. The first parts of the article are dedicated to the specification of the databases, the search method, and the description of the criteria chosen to classify the articles. Then, the data collected are presented in statistical graphs according to the proposed classification scheme. The data analyzed show that most of the significant improvements in oxidation resistance are achieved with advanced production processes, especially HIP and SPS, which eliminate porosity to a very high degree. In addition, statistical studies showed that the use of new replacement binders, Ni3Al, Fe–based alloys, FeAl, and Al2O3, improved the oxidation properties in 75–100% of cases. Meanwhile, the use of high–entropy alloys (HEAs) as cermet binders may be the subject of future research for oxidation, given the recently published results of good mechanical properties.

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Section: Statistical Discussionmentioning

confidence: 99%

Section: Type Of Bindermentioning

confidence: 99%

Section: Kinetics Of Oxidationmentioning

confidence: 99%

mentioning

confidence: 99%

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Effect of Binder on Oxidation Properties of Tungsten Carbides: A Review by a Conceptual Classification Approach

Fathipour,

Hadi,

Maleki

et al. 2024

Ceramics

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“…For the working temperature of WC-based cemented carbides, Casas et al [ 31 ] found that after being exposed in air at 700 °C, the flexural strength of WC-Co drastically reduced within a short time. Liu [ 32 ] and Shi et al [ 33 ] concluded that the intense oxidation of WC-Co occurred at temperatures higher than 700 °C. Therefore, 700 °C should be the maximum temperature of WC-Co cemented carbides for the normal service.…”

Section: Introductionmentioning

confidence: 99%

Investigations on Thermal Conductivity of Two-Phase WC-Co-Ni Cemented Carbides through a Novel Model and Key Experiments

Wen

Jing

Long³

et al. 2023

Materials

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Excellent thermal conductivity is beneficial for the fast heat release during service of cemented carbides. Thus, thermal conductivity is a significant property of cemented carbides, considerably affecting their service life. Still, there is a lack of systematic investigation into the thermal conductivity of two-phase WC-Co-Ni cemented carbides. To remedy this situation, we integrated experiments and models to study its thermal conductivity varying the phase composition, temperature and WC grain size. To conduct the experiments, WC-Co-Ni samples with two-phase structure were designed via the CALPHAD (Calculation of Phase Diagrams) approach and then prepared via the liquid-phase sintering process. Key thermal conductivity measurements of these prepared samples were then taken via LFA (Laser Flash Analysis). As for modeling, the thermal conductivities of (Co, Ni) binder phase and WC hard phase were firstly evaluated through our previously developed models for single-phase solid solutions. Integrating the present key measurements and models, the values of ITR (Interface Thermal Resistance) between WC hard phase and (Co, Ni) binder phase were evaluated and thus the model to calculate thermal conductivity of two-phase WC-Co-Ni was established. Meanwhile, this model was verified to be reliable through comparing the model-evaluated thermal conductivities with the experimental data. Furthermore, using this developed model, the thermal conductivity of two-phase WC-Co-Ni varying with phase-fraction, temperature and grain size of WC was predicted, which can contribute to its design for obtaining desired thermal conductivities.

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Effect of TiB2/WC addition on the oxidation behavior of Ti(C,N)-304ss cermets during the early oxidation stage

Lin

Gao

et al. 2019

Corrosion Science

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Oxidation behavior of WC–Co cemented carbide in elevated temperature

Cited by 9 publications

References 22 publications

Effect of Binder on Oxidation Properties of Tungsten Carbides: A Review by a Conceptual Classification Approach

Effect of Binder on Oxidation Properties of Tungsten Carbides: A Review by a Conceptual Classification Approach

Investigations on Thermal Conductivity of Two-Phase WC-Co-Ni Cemented Carbides through a Novel Model and Key Experiments

Effect of TiB2/WC addition on the oxidation behavior of Ti(C,N)-304ss cermets during the early oxidation stage

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