CSUTDCC1—A thermodynamic database for multicomponent cemented carbides

Peng, Yingbiao; Du, Yong; Zhou, Panyue; Zhang, Wei-Bin; Chen, Weimin; Chen, Li; Wang, Shequan; Wen, Guangrui; Xie, Wei

doi:10.1016/j.ijrmhm.2013.10.005

Cited by 118 publications

(21 citation statements)

References 64 publications

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“…In order to avoid the formation of the unexpected phases (such as M 6 C and graphite), the carbon content in cemented carbides was carefully controlled through thermodynamic calculations. For example, the phase equilibria close to the sintering region of an alloy with the composition of WC-10Co-0.5Cr-0.5Ta was calculated using Thermo-Calc (Thermo-Calc Software, Stockholm, Sweden) package 30 based on the thermodynamic database CSUTDCC1, 31 as shown in Fig. 1.…”

Section: Methodsmentioning

confidence: 99%

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

Zhang

Peng

et al. 2015

J. Am. Ceram. Soc.

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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.

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Section: Methodsmentioning

confidence: 99%

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

Zhang

Peng

et al. 2015

J. Am. Ceram. Soc.

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“…The thermodynamic parameters of the C-W-Zr system obtained in the present work are incorporated into the multi-component thermodynamic database of cemented carbides [30], which will be helpful in Zr or ZrC doped cemented carbide study.…”

Section: Resultsmentioning

confidence: 99%

Thermodynamic modeling of the C–W–Zr system

Zhou

Peng

et al. 2015

International Journal of Refractory Metals and Hard Materials

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“…Cui (Co-Al-W) diffusion [9] w/ thermodynamics [28,35,36] Zhang (Co-Cr-W) diffusion [21] w/ thermodynamics [29] Optimized values (this work) w/ thermodynamics [27] Mobility of Al MQ(FCC,Al:VA;0)…”

Section: Methodsmentioning

confidence: 99%

Diffusion in FCC Co-rich Co-Al-W Alloys at 900 and 1000 °C

Moon

Campbell

Williams

et al. 2016

J. Phase Equilib. Diffus.

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Diffusion couple experiments between various Co-rich face centered cubic (FCC) alloys in the Co-W-Al ternary system have been conducted at 900 and 1000°C. Diffusion coefficients have been extracted for the Co-W binary and for ternary alloys at compositions where the diffusion paths cross. In addition, a least squares method has been utilized to optimize diffusion mobility parameters using DICTRA simulations to best fit the experimental concentration versus distance curves. Predictions of the diffusion matrix using the refined mobility database are in good agreement with the values obtained at the diffusion path crossing points.

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CSUTDCC1—A thermodynamic database for multicomponent cemented carbides

Cited by 118 publications

References 64 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

Thermodynamic modeling of the C–W–Zr system

Diffusion in FCC Co-rich Co-Al-W Alloys at 900 and 1000 °C

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