Frontier Materials & TechnologiesFrontier Materials & TechnologiesFrontier Materials & Technologies2782-40392782-6074Togliatti State University125410.18323/2782-4039-2026-3-77-3ArticlesСтатьиResearch ArticleA method for investigating the dynamics of cavitation erosion of test specimens made of aluminum foilМетод исследования динамики кавитационной эрозии тест-образцов из алюминиевой фольгиhttps://orcid.org/0009-0009-6489-3585KurliukEvgeny A.КурлюкЕвгений Александрович
Belarus

Intern of a Junior Research Associate at the Laboratory of Ultrasonic Technologies and Equipment

Стажер младшего научного сотрудникалаборатории «Ультразвуковые технологии и оборудование»

kurluke750@gmail.comhttps://orcid.org/0009-0008-4479-3125MinchukVyacheslav S.МинчукВячеслав Сергеевич
Belarus

Junior Researcher at the Laboratory of Ultrasonic Technologies and Equipment

Младший научный сотрудниклаборатории «Ультразвуковые технологии и оборудование»

minchuk@bsuir.byhttps://orcid.org/0009-0008-4780-0079DzezhkunouTsimafey A.ДежкуновТимофей Александрович
Belarus

PC Operator at the Laboratoryof Ultrasonic Technologies and Equipment.

Оператор ПЭВМ лаборатории «Ультразвуковые технологии и оборудование»

timdezh47@gmail.comhttps://orcid.org/0009-0004-5860-0102LebedArtem A.ЛебедьАртем Алексадрович
Belarus

PC Operator at the Laboratoryof Ultrasonic Technologies and Equipment.

Оператор ПЭВМ лаборатории «Ультразвуковые технологии и оборудование»

artemlebed20062007@gmail.comhttps://orcid.org/0000-0002-9415-294XDezhkunovNikolay V.ДежкуновНиколай Васильевич
Belarus

PhD (Engineering), Associate Professor,Head of the Laboratory of Ultrasonic Technologies and Equipment

Кандидат технических наук, доцент,заведующий лабораторией «Ультразвуковые технологии и оборудование»

dnv@bsuir.byBelarusian State University of Informatics and RadioelectronicsБелорусский государственный университет информатики и радиоэлектроники30092026329433009202630092026Copyright ©; 2026, Kurliuk E.A., Minchuk V.S., Dzezhkunou T.A., Lebed A.A., Dezhkunov N.V.Copyright ©; 2026, Курлюк Е.А., Минчук В.С., Дежкунов Т.А., Лебедь А.А., Дежкунов Н.В.2026Kurliuk E.A., Minchuk V.S., Dzezhkunou T.A., Lebed A.A., Dezhkunov N.V.Курлюк Е.А., Минчук В.С., Дежкунов Т.А., Лебедь А.А., Дежкунов Н.В.https://creativecommons.org/licenses/by/4.0https://vektornaukitech.ru/jour/article/view/1254

Problem. The relevance of this work is caused by the absence of a generally accepted method for the quantitative assessment of cavitation activity, as well as the limitations of traditional erosion tests associated with long experiment durations, low reproducibility, and distortion of the cavitation field structure by massive test specimens. Aim. Todevelop a highly sensitive and reproducible erosion test method that allows assessing the spatial distribution of erosionactivity in an ultrasonic field. Methods. To study the dynamics of cavitation erosion, it is proposed to use video recordingof the destruction process of aluminum foil followed by automated image processing. The developed software implementscomputer vision algorithms using the OpenCV library and neural network segmentation based on a modified SegmentAnything Model (SAM) with a U-Net type output layer and a ResNet34 encoder. This allows delineating automaticallythe erosion damage zone and calculating quantitative damage characteristics. The method was tested in the ultrasonic fieldof a 22 kHz immersion transducer, varying the ultrasound intensity, distance to the transducer, and gas content of the liquid. Results. High reproducibility of the method was established. It is shown that the use of 15 μm thick foil (GOST 745-2014) provides high sensitivity to non-stationary cavitation processes. It was found that the active cavitation zone inthe field of an immersion transducer is localised near the radiating surface (up to 5 mm), with the erosion rate rapidlydecreasing with increasing distance from the transducer. Conclusions. The developed method for recording and analysingthe dynamics of cavitation destruction of test specimens allows reducing the experiment duration by at least an order ofmagnitude compared to the ASTM G32-16 method. The method also makes it possible to obtain the distribution of cavitation erosion activity in the investigated volume in a single pass, i.e., using a single specimen. The possibility of correlatingerosion damage characteristics with the parameters of the cavitation noise spectrum is demonstrated.

Проблема. Актуальность работы обусловлена отсутствием общепринятого метода количественной оценки активности кавитации, а также ограничениями традиционных эрозионных испытаний, связаннымис большой длительностью экспериментов, низкой воспроизводимостью и искажением структуры кавитационногополя массивными тест-образцами. Цель. Разработать высокочувствительный и воспроизводимый метод эрозионных испытаний, позволяющий оценивать пространственное распределение эрозионной активности в ультразвуковом поле. Методы. Для исследования динамики кавитационной эрозии предложено использовать видеорегистрацию процесса разрушения алюминиевой фольги с последующей автоматизированной обработкой изображений.Разработанное программное обеспечение реализует алгоритмы компьютерного зрения с использованием библиотеки OpenCV и нейросетевой сегментации на основе модифицированной модели Segment Anything Model (SAM)с выходным слоем типа U-Net и энкодером ResNet34. Это позволяет автоматически выделять зону эрозионногоповреждения и рассчитывать количественные характеристики разрушения. Апробация метода выполнена в ультразвуковом поле погружного излучателя 22 кГц при варьировании интенсивности ультразвука, расстояния до излучателя и газосодержания жидкости. Результаты. Установлена высокая воспроизводимость метода. Показано, чтоиспользование фольги толщиной 15 мкм (ГОСТ 745-2014) обеспечивает высокую чувствительность к нестационарным процессам кавитации. Установлено, что активная зона кавитации в поле погружного излучателя локализована вблизи излучающей поверхности (до 5 мм), при этом скорость эрозии быстро снижается с увеличением расстояния до излучателя. Выводы. Разработанный метод регистрации и анализа динамики кавитационногоразрушения тест-образцов позволяет сократить время проведение эксперимента как минимум на порядок по сравнению с методикой ASTM G32-16. Также метод позволяет получать распределение эрозионной активности кавитации в исследуемом объеме за один проход, т.е. при использовании одного образца. Показана возможность сопоставления характеристик эрозионного разрушения с параметрами спектра кавитационного шума.

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