Effect of high-voltage discharge on the particle size of hard alloy powders

Sizonenko, O. N.; Baglyuk, G. A.; Raichenko, A. I.; Bogatyreva, G. P.; Oleinik, N. A.; Taftai, E. I.; Lipyan, E. V.; Тоrpakov, A. S.

doi:10.1007/s11106-011-9280-6

Cited by 8 publications

(7 citation statements)

References 3 publications

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“…They also inquired into the possibilities of EDC. Work carried out in Mykolaiv, Nikolaev and Kiev (Ukraine) deals both with material production [79] and mainly with discharges in particle-fluid suspensions and the effect on powder particles, as reported from 2011 to 2017 [80,81]. Nevertheless, regarding consolidation of powders, the most extensive research has been carried out in Russia.…”

Section: Historical Development Of the Edc Processmentioning

confidence: 99%

“…Mixtures as Fe-base-TiC (Ferro-Titanit Nikro128) powders were studied in Germany [104], Fe-diamond in Ireland [87], and Fe-20TiC mixed with diamond powder [80], or Fe-20Ti-5B 4 C powders [100] in Ukraine.…”

Section: Studied Materialsmentioning

confidence: 99%

“…Pure W powders have been processed by EDC in Korea [123], alloys as W-6.93Ni-3.12Fe in Russia [84], and functionally graded Fe-W composites have been fabricated in Germany [88]. WCCo-diamond suspensions were treated by electrical discharges in Ukraine [80].…”

Section: Studied Materialsmentioning

confidence: 99%

“…Finally, other applications of EDC consists of the treatment of powder suspensions, with the idea of reducing particles size. Both water and kerosene suspensions with Fe-20TiC powders [80] and Fe-20Ti-5B 4 C powder mixtures [101] were tested. The pressure in the discharge channel generates shock waves surpassing the tensile strength of the powder particles, therefore breaking them.…”

Section: Iron-basementioning

confidence: 99%

“…Finally, electrical discharges were applied to powder suspensions of (WC-6Co)-1ASUD75 diamond composite powders to refine the powder's structure [80]. Discharges in aqueous suspension with a total energy of 400 kJ/dm 3 significantly influences the structure.…”

Section: Hard Metalsmentioning

confidence: 99%

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Capacitor Electrical Discharge Consolidation of Metallic Powders—A Review

Aranda

Fernández

Lozano-Pérez

et al. 2021

Metals

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Manufacturing metallic materials from elemental or alloyed powders is an option in many industrial processes. Nevertheless, the traditional powder metallurgy processing including furnace sintering is at times detrimental for the microstructure attained in the powders. Alternative sintering processes based on the use of electricity and the energy obtained by the Joule effect in powder particles can be quick enough to avoid microstructural changes. In particular, when the energy is stored in a capacitor and then discharged, the heating process is extremely quick, lasting milliseconds or even microseconds. This process, generally known as electrical discharge consolidation, has been applied to a wide variety of metallic materials, easily preserving the original microstructure of the powders. Both porous or homogeneous and highly densified material can be obtained, and without losing the desired properties of the consolidated material. A general overview of the process and applications, as well as the results obtained by different research groups around the world, have been reviewed in this manuscript.

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Section: Historical Development Of the Edc Processmentioning

confidence: 99%