Plastic flow localization in bulk-tungsten with ultrafine microstructure

被引：116

作者：

Wei, Q

Ramesh, KT

Ma, E ^{[1
]}

Kesckes, LJ

Dowding, RJ

Kazykhanov, VU

Valiev, RZ

机构：

[1] Johns Hopkins Univ, CAMCS, Baltimore, MD 21218 USA

[2] USA, Res Lab, Aberdeen Proving Ground, MD 21005 USA

[3] Ufa State Aviat Tech Univ, Ufa 450000, Russia

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 10期

关键词：

D O I：

10.1063/1.1875754

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Shear localization is demonstrated in bulk tungsten (W) of commercial purity under dynamic uniaxial compression. Microstructure refinement via severe plastic deformation was the strategy used to induce this unusual deformation mode for W. The ultrafine microstructure achieved in bcc materials leads to elevated strength and ductility, as well as reduced strain hardening and strain. rate hardening, thus enhancing the propensity for adiabatic plastic flow localization. (c) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

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