Fabrication of binder-free ultrafine WC-6Co composites by coupled multi-physical fields activation technology
Huang, Kunlan and Qin, Yi and Yin, Deqiang and Yang, Yi and Yang, Gang; Shehab, Essam and Ball, Peter and Tjahjono, Benny, eds. (2013) Fabrication of binder-free ultrafine WC-6Co composites by coupled multi-physical fields activation technology. In: Advances in Manufacturing Technology XXVII. Cranfield University Press, GBR, pp. 369-374. ISBN 9781907413230
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A novel sintering method, named as coupled multi-physical fields activation technology, has been introduced for the forming of various material powder systems. Compared with the conventional ones, this technique presents more advantages: lower sintering temperature, shorter forming time, and remarkable inhibition of the grains coarsening. In the study, the cylinders of Φ4.0mm×4.0mm had been formed with ultrafine WC-6Co powders. The relative properties of sintered WC-6Co cemented carbides, such as hardness and the microstructures, had been obtained. The study has shown that a relative density, 97.80%, of the formed samples, could been achieved when the case of temperature 850℃, heating rate 50℃/s, pressure 75MPa and Electro-heating loop 6 times, were used. More importantly, the circumscription for the growth of grain size of WC, attributed to the effect of electrical field, renders coupled multi-physical fields activation technology applicable for getting WC- 6Co cemented carbides with fine grain size and good properties.
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Item type: Book Section ID code: 58543 Dates: DateEvent19 September 2013PublishedSubjects: Technology > Manufactures Department: Faculty of Engineering > Design, Manufacture and Engineering Management
Technology and Innovation Centre > Advanced Engineering and ManufacturingDepositing user: Pure Administrator Date deposited: 09 Nov 2016 12:46 Last modified: 08 Apr 2024 13:34 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/58543