The Digital Image Correlation Method Applied to Studying the Localization of the Plastic Deformation of An Alluminum Alloy Electrolytically Saturated with Hydrogen

A. V. Bochkareva; A. G. Lunev; Yu. V. Li; S. A. Barannikova; L. B. Zuev

doi:10.17804/2410-9908.2016.1.045-054

A. V. Bochkareva, A. G. Lunev , Yu. V. Li, S. A. Barannikova, L. B. Zuev

THE DIGITAL IMAGE CORRELATION METHOD APPLIED TO STUDYING THE LOCALIZATION OF THE PLASTIC DEFORMATION OF AN ALLUMINUM ALLOY ELECTROLYTICALLY SATURATED WITH HYDROGEN

DOI: 10.17804/2410-9908.2016.1.045-054

The paper presents investigations of the effect of hydrogen embrittlement on the plastic flow. The studies are performed for test samples of aluminum alloy subjected to electrolytic hydrogenation in a three-electrode electrochemical cell at a controlled constant cathode potential using the Digital Image Correlation method. Diagrams of localized plasticity wave propagation through the length of the sample under deformation have been obtained. The deformation diagrams are examined for the deformed samples of the aluminum alloy and also main parameters of localized plasticity patterns are determined. Using the scanning electron microscopy method, the changes in the fracture surface are investigated.

Keywords: hydrogen embrittlement, duralumin, plasticity, microhardness, localized deformation

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А. В. Бочкарёва, С. А. Баранникова , А. Г. Лунев, Ю. В. Ли, Л. Б. Зуев

ИССЛЕДОВАНИЕ ЛОКАЛИЗАЦИИ ПЛАСТИЧЕСКОЙ ДЕФОРМАЦИИ ЭЛЕКТРОЛИТИЧЕСКИ НАСЫЩЕННОГО ВОДОРОДОМ АЛЮМИНИЕВОГО СПЛАВА МЕТОДОМ ДЕКОРРЕЛЯЦИИ ЦИФРОВЫХ СПЕКЛ-ИЗОБРАЖЕНИЙ

В работе исследовано влияние насыщения водородом алюминиевого сплава марки Д1 электролитическим методом на локализацию пластического течения. Методом декорреляции цифровых спекл-изображений получены эволюционные картины распространения фронтов локализации по длине образца во время механических испытаний. Проведен анализ стадийности кривых пластического течения и определены основные количественные параметры распространения локализованных зон. Приведены результаты фрактографических исследований поверхностей разрушения дюралюмина в исходном состоянии и после взаимодействия с агрессивной водородосодержащей средой.

Ключевые слова: водородное охрупчивание, дуралюмин, пластичность, микротвердость, локализация деформации

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Библиографическая ссылка на статью

The Digital Image Correlation Method Applied to Studying the Localization of the Plastic Deformation of An Alluminum Alloy Electrolytically Saturated with Hydrogen / A. V. Bochkareva, A. G. Lunev, Yu. V. Li, S. A. Barannikova, L. B. Zuev // Diagnostics, Resource and Mechanics of materials and structures. - 2016. - Iss. 1. - P. 45-54. -
DOI: 10.17804/2410-9908.2016.1.045-054. -
URL: http://dream-journal.org/issues/2016-1/2016-1_74.html
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