کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8083559 | 1521695 | 2018 | 44 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of structural factors on the strength properties of aluminum alloys under shock wave loading
ترجمه فارسی عنوان
تأثیر عوامل ساختاری بر خواص استحکام آلیاژهای آلومینیومی تحت بارگذاری موج شوک
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی هسته ای و مهندسی
چکیده انگلیسی
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 Ð1013 and aluminum alloys Ð2024, ÐÐ6063Т6, Ð1421, A7, Ð7075, Ð3003, A5083, ÐÐ1070 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 Roll-Bonding. 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 104-105 sâ1, 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Matter and Radiation at Extremes - Volume 3, Issue 4, July 2018, Pages 145-158
Journal: Matter and Radiation at Extremes - Volume 3, Issue 4, July 2018, Pages 145-158
نویسندگان
S.V. Razorenov,