Investigation of cemented carbides with alternative binders after CVD coating

Toller, Lisa; Liu, Chunxin; Holmström, Erik; Larsson, T.; Norgren, Susanne

doi:10.1016/j.ijrmhm.2016.07.005

Cited by 29 publications

(6 citation statements)

References 13 publications

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“…This suggests that the metallic phase is stabilized by increasing its configurational entropy. An extension of this concept has been recently investigated by several authors which propose "high entropy alloys" (HEA) as cobalt substitutes in hardmetals [14][15][16].…”

Section: Manuscript Filementioning

confidence: 99%

Reactive sintering of WC-Ni-Co-Cr-Ti-Al cemented carbides and precipitation of gamma prime in their metallic binder phases

Biurrun

Cuadrado

Napal

et al. 2021

International Journal of Refractory Metals and Hard Materials

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Section: Manuscript Filementioning

confidence: 99%

Reactive sintering of WC-Ni-Co-Cr-Ti-Al cemented carbides and precipitation of gamma prime in their metallic binder phases

Biurrun

Cuadrado

Napal

et al. 2021

International Journal of Refractory Metals and Hard Materials

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“…Tungsten alloys and tungsten-based materials are frequently used in radiation shielding applications because of their high atomic number, density, and hardness 12 . These compounds have effects that are remarkably comparable to those of the conventional radiation shielding materials 13 .…”

Section: Introductionmentioning

confidence: 99%

Physical, mechanical, and microstructural characterisation of tungsten carbide-based polymeric composites for radiation shielding application

Abualroos,

Idris,

Ibrahim

et al. 2024

Sci Rep

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Polymeric based composites have gained considerable attention as potential candidates for advanced radiation shielding applications due to their unique combination of high-density, radiation attenuation properties and improved mechanical strength. This study focuses on the comprehensive characterisation of polymeric based composites for radiation shielding applications. The objective of this study was to evaluate the physical, mechanical and microstructural properties of tungsten carbide-based epoxy resin and tungsten carbide cobalt-based epoxy resin for its efficiency in shielding against gamma-rays ranging from 0.6 up to 1.33 MeV. Polymeric composites with different weight percentages of epoxy resin (40 wt%, 35 wt%, 30 wt%, 25 wt%, 20 wt%, 15 wt% and 10 wt%) were fabricated, investigated and compared to conventional lead shield. The attenuation of the composites was performed using NaI (Tl) gamma-ray spectrometer to investigate the linear and mass attenuation coefficients, half value layer, and mean free path. High filler loadings into epoxy resin matrix (90% filler/10% epoxy) exhibited excellent gamma shielding properties. Mechanical properties, such as hardness were examined to assess the structural integrity and durability of the composites under various conditions. The fabricated composites showed a good resistance, the maximum hardness was attributed to composites with small thickness. The high loading of fillers in the epoxy matrix improved the microhardness of the composites. The distribution of the filler powder within the epoxy matrix was investigated using FESEM/EDX. The results revealed the successful incorporation of tungsten carbide and cobalt particles into the polymer matrix, leading to increased composite density and enhanced radiation attenuation. The unique combination of high-density, radiation attenuation, and improved mechanical properties positions polymeric based composites as promising candidates for radiation protection field.

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“…It is composed of a hard phase as the matrix, typically WC, is embedded into a relatively soft and ductile metallic matrix, and a binder phase which is typically Co-based [12]. The mechanical properties and microstructures of the binder phase can be modified through the alloying of the WC-Co-cemented carbides with effective alloying elements or compounds, such as Cr, Cu, Fe, and/or Ni [13][14][15][16]. However, apart from these alloying elements, it has been proved that cemented carbides consisting of Ru have been developed in recent years, with advantages including high-temperature performance and high-corrosion resistance [17].…”

Section: Introductionmentioning

confidence: 99%

Microstructures and properties of WC–10Co tuned by Ru integration and ball-milling

Zeng

Liu

Han

et al. 2023

Materials Science and Technology

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Here, the effects of Ru and ball-milling on the mechanical properties of WC–10Co-cemented carbide were investigated using systematic characterisation and microstructure analysis. It was found that with an increase in the Ru content, the WC grain morphology and grain size did not change; however, the values of density and coercivity, Co magnetism, hardness, and fracture toughness of cemented carbide were changed. When the Ru content was 4%, compared with the alloy without Ru, the toughness increased from 16.8 to 24.2 (MPa. m1/2) and the hardness increased from 1290 to 1330 (HV30). Meanwhile, the analysis of the mixing process shows that the optimal ball-milling time is determined by the performance combination of the obtained alloy.

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Investigation of cemented carbides with alternative binders after CVD coating

Cited by 29 publications

References 13 publications

Reactive sintering of WC-Ni-Co-Cr-Ti-Al cemented carbides and precipitation of gamma prime in their metallic binder phases

Reactive sintering of WC-Ni-Co-Cr-Ti-Al cemented carbides and precipitation of gamma prime in their metallic binder phases

Physical, mechanical, and microstructural characterisation of tungsten carbide-based polymeric composites for radiation shielding application

Microstructures and properties of WC–10Co tuned by Ru integration and ball-milling

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