Determination of the Mechanical Properties of the Materials Produced by Electric Pulse Powder Consolidation

Grigor’ev, E. G.; Gol'tsev, V. Yu.; Gribov, N. A.; Osintsev, A. V.; Plotnikov, A. S.; Smirnov, K. L.

doi:10.1134/s0036029520040096

Cited by 3 publications

(3 citation statements)

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“…The maximum strength (500 MPa) of samples sintered at 200 MPa was reached by consolidating with 5.4 kV, decreasing for higher voltages. Even higher strength of 700 MPa was reached with 150 MPa at 5.5 kV [84].…”

Section: Hard Metalsmentioning

confidence: 93%

“…Nevertheless, regarding consolidation of powders, the most extensive research has been carried out in Russia. The work regarding sintering through electricity was studied in Moscow from 1976 [82], continuing 15 years ago with the use of high voltage capacitors [83], and is still ongoing [84]. Work from Minsk, Belarus was produced from 2004 [49] to 2017 [85].…”

Section: Historical Development Of the Edc Processmentioning

confidence: 99%

“…Moreover, WC-TiC-Co powders were studied in Italy [126]. 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%

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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: Hard Metalsmentioning

confidence: 93%