Mechanical properties and peculiar features of energy dissipation of ultrafine-grained aluminum alloys under dynamic deformation

被引：1
|
作者：
Petrova, A. [1 ]
Brodova, I. [1 ]
Shorokhov, E. [2 ,3 ]
Plekhov, O.
Naimark, O.
机构：
[1] Russian Acad Sci, Inst Met Phys, Ural Branch, 18 S Kovalevskaya Str, Ekaterinburg 620990, Russia
[2] Zababakhin AllRussian Res Inst Tech Phys, Russian Fed Nucl Ctr, R-456770 Chelyabinsk, Russia
[3] Russian Acad Sci, Inst Continuous Media Mech, Ural Branch, Perm 614013, Russia
来源：
6TH INTERNATIONAL CONFERENCE ON NANOMATERIALS BY SEVERE PLASTIC DEFORMATION (NANOSPD6) | 2014年 / 63卷
关键词：
D O I：
10.1088/1757-899X/63/1/012146
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This paper presents experimental results on the thermodynamics of deformation process and mechanical behavior of the ultrafine grained aluminum alloys under dynamic compression. Dynamic compression tests were performed on a Hopkinson-Kolsky split bar at the strain rate of 10(3) s(-1) with simultaneously recording the surface temperature of samples by an infrared camera. Energy dissipation ability was determined for ultrafine-grained alloys. An inverse strain rate dependency of dynamic yield strength was observed in the ultrafine-grained Al-Zn-Mg-Cu alloy (A7075).
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页数：7
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