zldmЗаводская лаборатория. Диагностика материаловIndustrial laboratory. Diagnostics of materials1028-68612588-0187ООО «Издательство «ТЕСТ-ЗЛ»10.26896/1028-6861-2026-92-2-42-51zldm-2729Research ArticleИССЛЕДОВАНИЕ СТРУКТУРЫ И СВОЙСТВSTRUCTURE AND PROPERTIES INVESTIGATIONИсследование высоковольтной консолидации порошков тугоплавких материаловResearch of high-voltage consolidation of powders of refractory materialsГольцевВ. Ю.GoltsevV. Yu.

Владимир Юрьевич Гольцев

115409, Москва, Каширское ш., д. 31

Vladimir Yu. Goltsev

31, Kashirskoe sh., Moscow, 115409

gvy587@gmail.comГригорьевЕ. Г.GrigoryevE. G.

Евгений Григорьевич Григорьев

142432, Московская обл., г. Черноголовка, ул. Академика Осипьяна, д. 8

Evgeniy G. Grigoryev

8, ul. Akademika Osipyana, Chernogolovka, Moscow obl., 142432

КузнечикО. О.KuznechikO. O.

Олег Ольгердович Кузнечик

220005, г. Минск, ул. Платонова, д. 41

Oleg O. Kuznechik

41, ul. Platonova, Minsk, 220005

НескоромныйС. В.NescoromniyS. V.

Станислав Валерьевич Нескоромный

344000, г. Ростов-на-Дону, пл. Гагарина, д. 1

Stanislav V. Nescoromniy

1, pl. Gagarina, Rostov-on-Don, 344000

ОсинцевА. В.OsintsevA. V.

Андрей Вениаминович Осинцев

115409, Москва, Каширское ш., д. 31

Andrey V. Osintsev

31, Kashirskoe sh., Moscow, 115409

СтрижаковЕ. Л.StrizhakovE. L.

Евгений Львович Стрижаков

344000, г. Ростов-на-Дону, пл. Гагарина, д. 1

Evgeniy L. Strizhakov

1, pl. Gagarina, Rostov-on-Don, 344000

 

ЧумаковА. Н.ChumakovA. N.

Александр Никитович Чумаков

220072, г. Минск, просп. Независимости, д. 68-2

Alexander N. Chumakov

68-2, prosp. Nezavisimosti, Minsk, 220072

Национальный исследовательский ядерный университет «МИФИ»РоссияResearch Nuclear University «MEPhI»Russian FederationИнститут структурной макрокинетики и проблем материаловедения им. А. Г. Мержанова РАН (ИСМАН)РоссияMerzhanov Institute of Structural Macrokinetics and Materials Science RASRussian FederationИнститут порошковой металлургии им. академика О. В. Романа НАН БеларусиБеларусьPowder Metallurgy Institute NASBelarusДонской государственный технический университетРоссияDon State Technical UniversityRussian FederationИнститут физики им. Б. И. Степанова НАН БеларусиБеларусьStepanov Institute of Physics NASBelarus2026230220269224251Copyright © Гольцев В.Ю., Григорьев Е.Г., Кузнечик О.О., Нескоромный С.В., Осинцев А.В., Стрижаков Е.Л., Чумаков А.Н., 20262026Гольцев В.Ю., Григорьев Е.Г., Кузнечик О.О., Нескоромный С.В., Осинцев А.В., Стрижаков Е.Л., Чумаков А.Н.Goltsev V.Y., Grigoryev E.G., Kuznechik O.O., Nescoromniy S.V., Osintsev A.V., Strizhakov E.L., Chumakov A.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.zldm.ru/jour/article/view/2729

При использовании технологии порошковой металлургии возникает задача сохранения в компактном материале в результате спекания (консолидации порошков) исходных микроструктуры и размера зерен. Особенно это актуально для порошков тяжелых сплавов на основе вольфрама и карбидов тугоплавких металлов (вольфрама, гафния, тантала и др.). Данную задачу решают за счет применения подходов, использующих высокоинтенсивное кратковременное высокотемпературное воздействие одновременно с механическим давлением на порошковую заготовку. Цель работы — исследование процесса высоковольтной консолидации порошковых материалов (ВКП) с применением разработанного измерительного комплекса. Процесс ВКП заключается в одновременном воздействии на порошок короткого мощного импульса тока, сформированного высоковольтным генератором импульсов тока, и внешнего механического давления, создаваемого пневмопрессом. Измерительный комплекс включал системы регистрации высоковольтного импульса тока и интенсивности теплового излучения консолидированного материала методом импульсной фотометрии с помощью фотодиодных датчиков, а также систему согласования и управления. При испытаниях регистрировали параметры высоковольтного импульсного тока и интенсивность теплового излучения консолидируемых материалов при высоковольтном электроимпульсном воздействии. Определены оптимальные значения параметров ВКП для сплавов ВК20, ВНЖ-90, ВНМ 3-2, проанализированы структура и физико-механические свойства консолидированных образцов. Полученные результаты могут быть использованы для совершенствования методики высоковольтной консолидации тугоплавких порошковых материалов.

When using powder metallurgy technology, the challenge arises of preserving the original microstructure and grain size in a compact material as a result of sintering (powder consolidation). This is particularly relevant for powders of heavy tungsten-based alloys and refractory metal carbides (tungsten, hafnium, tantalum, etc.). This problem is solved by applying approaches that utilize high-intensity, short-term, high-temperature exposure combined with mechanical pressure on the powder blank. The objective of this study is to investigate the high-voltage consolidation (HVC) process of powder materials using the developed measuring system. HVC involves simultaneously applying a short, powerful current pulse to the powder, generated by a high-voltage current pulse generator, and external mechanical pressure, generated by a pneumatic press. The measuring system included systems for recording the high-voltage current pulse and the intensity of thermal radiation from the consolidated material using pulse photometry with photodiode sensors, as well as a matching and control system. During the tests, the parameters of the high-voltage pulse current and the thermal radiation intensity of the consolidated materials were recorded under high-voltage electric pulse exposure. Optimal values for the high-voltage pulse current parameters were determined for VK20, VNZh-90, and VNM 3-2 alloys, and the structure and physical and mechanical properties of the consolidated samples were analyzed. The results can be used to improve the high-voltage consolidation methodology for refractory powder materials.

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The authors declare that there are no conflicts of interest present.