Localization of plastic strain under shock-wave loading of titanium alloy with a crack

被引：2

作者：

Petrov, AI ^{[1
]}

Razuvaeva, MV ^{[1
]}

机构：

[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

来源：

TECHNICAL PHYSICS | 2003年 / 48卷 / 06期

关键词：

Titanium Alloy; Dislocation Density; Shear Band; Dynamic Fracture; Crack Edge;

D O I：

10.1134/1.1583823

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of shock-wave loading with an amplitude of 4 GPa and a duration of 10 mus on the localization of plastic flow and the dynamic fracture of VT-1 cast titanium alloy containing a disk-shaped crack is considered. It is found that the crack size decreases in the direction of shock wave propagation, the dislocation density grows and adiabatic shear bands appear near the crack, and secondary cracks originate in the areas of localized flow near the crack edges. The strain, strain rate, dislocation density, rate of dislocation generation, and dislocation velocity near and away from the healing crack are estimated. (C) 2003 MAIK "Nauka / Interperiodica".

引用

页码：714 / 716

页数：3

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