Geodesic
Numerical optimization of the sintering process of dispersed electroerosion particles of the alloy VNZh 95
Čebyševskij sbornik, Tome 22 (2021) no. 3, pp. 298-310

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In this paper, the optimal parameters of the process of obtaining a heavy tungsten alloy by spark plasma sintering of the particles of the alloy VNZh 95 on the microhardness of the sintered samples are determined by conducting a full factorial experiment of the type. The operating parameters of the spark plasma sintering unit were selected as factors: temperature, pressure, and holding time, min. The optimal parameters of the installation operation were determined for the electroerosive material VZH 95, previously obtained in two working media: distilled water and lighting kerosene. According to a series of experiments to determine the maximum value of the optimization parameter Y (microhardness), which amounted to: for samples obtained from particles dispersed in water — $3498,6$ MPa at $T = 1050^\circ$C, a pressure of $P = 40$ MPa and holding time $t =10$ min; for samples obtained from particles dispersed in kerosene — $2449,2$ MPa at a temperature $T = 1200^\circ$C, $P = 40$ MPa and holding time $t = 5$ min. The results of experimental studies of the composition, structure, and properties of heavy tungsten alloys made of electroerosion-dispersed particles of the VNJ 95 alloy obtained under optimal conditions are presented below.
Keywords: electroerosive powder, spark plasma sintering, process optimization. 
@article{CHEB_2021_22_3_a17,
     author = {E. V. Ageeva and E. V. Ageev and O. V. Kuzovleva and A. E. Gvozdev},
     title = {Numerical optimization of the sintering process of dispersed electroerosion particles of the alloy {VNZh} 95},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {298--310},
     publisher = {mathdoc},
     volume = {22},
     number = {3},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2021_22_3_a17/}
}
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E. V. Ageeva; E. V. Ageev; O. V. Kuzovleva; A. E. Gvozdev. Numerical optimization of the sintering process of dispersed electroerosion particles of the alloy VNZh 95. Čebyševskij sbornik, Tome 22 (2021) no. 3, pp. 298-310. http://geodesic.mathdoc.fr/item/CHEB_2021_22_3_a17/