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Influence of structural factors on the strength properties of aluminum alloys under shock wave loadingстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Дата последнего поиска статьи во внешних источниках: 26 декабря 2018 г.
- Автор: Razorenov S.V.
- Журнал: Matter and Radiation at Extremes
- Том: 3
- Номер: 4
- Год издания: 2018
- Первая страница: 145
- Последняя страница: 158
- DOI: 10.1016/j.mre.2018.03.004
- Аннотация: The results of measurements of the strength characteristics - Hugoniot elastic limit and spall strength of aluminum and aluminum alloys in different structural states under shock wave loading are presented. Single-crystals and polycrystalline technical grade aluminum 1013 and aluminum alloys A2024, AA6063T6, A1421, A7, A7075, A3003, A5083, AA1070 in the initial coarse-grained state and ultrafine- grained or nanocrystalline structural state were investigated. The refinement of the grain structure was carried out by different methods of severe plastic deformation such as Equal Chanel Angular Pressing, Dynamic Channel Angular Pressing, High-Pressure Torsion and Accumulative RollBonding. The strength characteristics of shock-loaded samples in different structural states were obtained from the analysis of the evolution of the free surface velocity histories recorded by means of laser Doppler velocimeter VISAR. The strain rates before spall fracture of the samples were in the range of 10(4)-10(5) s(-1), the maximum pressure of shock compression did not exceed 7 GPa. The results of these studies clearly demonstrate the influence of structural factors on the resistance to high-rate deformation and dynamic fracture, and it is much less than under the static and quasi-static loading. (c) 2018 Science and Technology Information Center, China Academy of Engineering Physics. Publishing services by Elsevier B.V.
- Добавил в систему: Разоренов Сергей Владимирович