The effect of NbC on mechanical properties and fracture behavior of WC–10Co cemented carbides

Zhou, Wei; Xiong, Ji; Wan, Weicai; Guo, Zhixing; Lin, Zihao; Huang, Shiyao; Tang, Limei; Zhong, Hua

doi:10.1016/j.ijrmhm.2014.11.006

Cited by 41 publications

(14 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…So the dramatic decrease in TRS and HRA values from 0.5 and 0.7 wt% Ta is mainly caused by the increased coarse (Ta, W)C phase and the weak phase interface. 28 Finally, with the improvement of the cubic phase distribution, the TRS and HRA increase slightly with 1 wt% Ta addition. The fracture morphology of the alloys with different Ta contents is shown in Fig.…”

Section: Resultsmentioning

confidence: 93%

“…What's more, due to the poor wettability of (Ta, W)C with binder phase, there is a reduction in binding strength with Co. So the dramatic decrease in TRS and HRA values from 0.5 and 0.7 wt% Ta is mainly caused by the increased coarse (Ta, W)C phase and the weak phase interface . Finally, with the improvement of the cubic phase distribution, the TRS and HRA increase slightly with 1 wt% Ta addition.…”

Section: Resultsmentioning

confidence: 97%

“…Because of the attractive physical and mechanical properties, adding TaC refractory carbide into WC–Co‐based alloys can improve the resistance to plastic deformation and high‐temperature performance . However, when the amount of added TaC is above the saturation solubility, dissolved TaC separates out as brittle honeycombed (Ta, W)C cubic phase during liquid sintering . The nonuniform distribution of precipitated (Ta, W)C cubic phase leads to the heterogeneous microstructure and deteriorates the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…[22][23][24] However, when the amount of added TaC is above the saturation solubility, dissolved TaC separates out as brittle honeycombed (Ta, W)C cubic phase during liquid sintering. [25][26][27][28] The nonuniform distribution of precipitated (Ta, W)C cubic phase leads to the heterogeneous microstructure and deteriorates the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effect of the Cubic Phase Distribution on Ultrafine WC–10Co–0.5Cr–xTa Cemented Carbide

Zhang

Peng

et al. 2015

J. Am. Ceram. Soc.

View full text Add to dashboard Cite

The (Ta, W)C cubic phase distribution plays a key role in the microstructure and mechanical properties of ultrafine WC-CoCr 3 C 2 -TaC cemented carbides. By integration of thermodynamic calculations and key experiments, the influence of the cubic phase distribution in ultrafine WC-10Co-0.5Cr-xTa cemented carbides was systematically investigated. A series of ultrafine grained cemented carbides were designed and fabricated through ball-milling and vacuum sintering at 1410°C for 1 h. The microstructure was investigated using scanning electron microscopy (SEM). The electron backscattered diffraction (EBSD) was used to measure the orientation and size of cubic phase segregation. The results indicate that the cubic phase in the microstructure distributes more heterogeneously in the range of 0.2 to 0.7 wt% Ta addition, but finally the isolated cubic phase is homogeneously distributed with a Ta content from 0.7 to 1 wt%. Combining the thermodynamic calculation with the experiment, the mechanism for the microstructure evolution has been revealed. The mechanical properties of alloys substantially depend on the cubic phase distribution in the microstructure. A synergetic correlation between the transverse rupture strength (TRS) and Rockwell hardness was observed. The homogeneity of cubic phase can be designed and controlled effectively via the present approach.

show abstract

Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of the Cubic Phase Distribution on Ultrafine WC–10Co–0.5Cr–xTa Cemented Carbide

Zhang

Peng

et al. 2015

J. Am. Ceram. Soc.

View full text Add to dashboard Cite

show abstract

“…In recent years, attention of many researchers was taken on NbC for its attractive properties. On the other hand, the previous literature also indicated that the addition of NbC substantially refined the structure and improved the mechanical properties of alloy materials [10]. The present research selected the Ti-8Mo-6Ni alloy and added the different amounts of NbC carbides as a strengthening phase.…”

Section: Introductionmentioning

confidence: 80%

Investigation of the Microstructures, Mechanical Properties and Corrosion Behaviours of Ti-8Mo-6Ni Alloys Adding NbC PowdersviaVacuum Sintering Process

et al. 2017

View full text Add to dashboard Cite

Abstract. In this study, the Ti-8Mo-6Ni alloys are subjected to add various amounts of NbC carbides as a strengthening phase after the sintering process. Meanwhile, the composite materials underwent a vacuum sintering process at different temperatures of 1175°C, 1225°C and 1275°C for 1 h, respectively. To evaluate the microstructure, mechanical properties and corrosion behaviors of the Ti-8Mo-6Ni alloys adding NbC via the vacuum sintering processes, tests on the relative density, hardness, transverse rupture strength (TRS), corrosion and microstructure inspections are performed using XRD and SEM, with the aim of improving the microstructure and properties of sintered Ti-8Mo-6Ni alloys. The experimental results showed that when 1 wt% of NbC carbides is added to the Ti-8Mo-6Ni alloys they possessed the optimal properties after sintering at 1275°C for 1 h. The sintering density increased to about 99.7%, the hardness is enhanced to 48.1 HRC and the TRS increased to 976 MPa. Meanwhile, the sintered composite materials possessed good corrosion resistance.

show abstract

Effect of NbC in-situ synthesis on the microstructure and properties of pre-placed WCoB-TiC coating by laser cladding

Zhang

Pan

Zhang

et al. 2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

The effect of NbC on mechanical properties and fracture behavior of WC–10Co cemented carbides

Cited by 41 publications

References 27 publications

Effect of the Cubic Phase Distribution on Ultrafine WC–10Co–0.5Cr–xTa Cemented Carbide

Effect of the Cubic Phase Distribution on Ultrafine WC–10Co–0.5Cr–xTa Cemented Carbide

Investigation of the Microstructures, Mechanical Properties and Corrosion Behaviours of Ti-8Mo-6Ni Alloys Adding NbC PowdersviaVacuum Sintering Process

Effect of NbC in-situ synthesis on the microstructure and properties of pre-placed WCoB-TiC coating by laser cladding

Contact Info

Product

Resources

About