pimiПриборы и методы измеренийDevices and Methods of Measurements2220-95062414-0473BNTU10.21122/2220-9506-2022-13-4-291-301pimi-792Research ArticleМетоды измерений, контроля, диагностикиMethods of measurements, monitoring, diagnosticsЗарядочувствительный метод исследования деформационных процессовCharge-Sensitive Technique for Deformation Processes’ StudyПантелеевК. B.PantsialeyeuK. U.

Адрес для переписки:Пантелеев К.В. –Белорусский национальный технический университет, пр-т Независимости, 65, г. Минск 220013, Беларусьe-mail: nil_pt@bntu.by

Address for correspondence:Pantsialeyeu K.U. – Belarusian National Technical University, Nezavisimosty Ave., 65, Minsk 220013, Belarus e-mail: nil_pt@bntu.by

nil_pt@bntu.byМикитевичВ. А.MikitsevichU. A.

пр-т Независимости, 65, г. Минск 220013

 Nezavisimosty Ave., 65, Minsk 220013

СвистунА. И.SvistunA. I.

пр-т Независимости, 65, г. Минск 220013

 Nezavisimosty Ave., 65, Minsk 220013

ВоробейР. И.VorobeyR. I.

 Nezavisimosty Ave., 65, Minsk 220013

ГусевО. К.GusevO. K.

пр-т Независимости, 65, г. Минск 220013

 Nezavisimosty Ave., 65, Minsk 220013

ЖаринА. Л.ZharinA. L.

пр-т Независимости, 65, г. Минск 220013

 Nezavisimosty Ave., 65, Minsk 220013

Белорусский национальный технический университетБеларусьBelarusian National Technical UniversityBelarus202222122022134291301Copyright © Пантелеев К.B., Микитевич В.А., Свистун А.И., Воробей Р.И., Гусев О.К., Жарин А.Л., 20222022Пантелеев К.B., Микитевич В.А., Свистун А.И., Воробей Р.И., Гусев О.К., Жарин А.Л.Pantsialeyeu K.U., Mikitsevich U.A., Svistun A.I., Vorobey R.I., Gusev O.K., Zharin A.L.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://pimi.bntu.by/jour/article/view/792

В качестве информационного параметра об изменении состояния материала под действием механических напряжений может быть использован поверхностный электростатический потенциал (заряд). Целью работы являлась отработка методик исследования деформационных процессов в металлических и полимерных материалах с использованием зарядочувствительного метода.

Проведены экспериментальные исследования деформационных процессов при растягивающих, сжимающих и ударных нагрузках на образцах различных материалов: алюминиевый сплав марки АМг2, сталь марки 08ПС, полиэтилен высокого давления марки 12203-250 и образцы композиционных материалов на его основе, фторопласт-4. В качестве метода исследований использовался анализ изменений относительных значений работы выхода электрона поверхности в случае металлов и поверхностного электростатического потенциала в случае матричных и композиционных полимерных материалов. В качестве средств измерений использовалась сканирующая модификация зарядочувствительного зонда.

Результаты экспериментальных исследований материалов в напряжённо-деформированном состоянии демонстрируют высокую эффективность предложенного метода. Методика исследований позволяет обнаруживать локальные изменения поверхностного потенциала материала в области действия деформаций, которые не обнаруживаются в макроскопическом масштабе с использованием стандартных методов. Полученные результаты могут служить базой для разработки новых методов и методик исследования механических свойств как металлов, так и диэлектрических материалов.

Surface charge can be used as an information parameter about the change in the state of the material under the action of mechanical stresses. The aim of the work was to develop methods for studying deformation processes in metallic and polymeric materials using a charge-sensitive method.

Experimental studies of deformation processes under tensile, compressive and impact loads were carried out on samples of various materials: aluminum alloy of AMg2 grade, steel of grade 08PS, high-pressure polyethylene of grade 12203-250 and samples of composite materials based on it, F4 polytetrafluoroethylene. As a research method, the analysis of changes in the relative values of the surface electron work function in the case of metals and the surface electrostatic potential in the case of polymers and composite materials is used. A scanning modification of a charge-sensitive probe is used as a measuring instrument.

The results of experimental studies of materials in a stress-strain state demonstrate the high efficiency of the proposed method. The research methodology makes it possible to detect local changes in the surface potential of the material in the area of deformations, which are not detected on a macroscopic scale using standard methods. The results obtained can serve as a basis for the development of new methods and techniques for studying the mechanical properties of both metals and dielectric materials.

 

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