Plastic flow localization in bulk tungsten with ultrafine microstructure

Q. Wei; K. T. Ramesh; E. Ma; L. J. Kesckes; R. J. Dowding; V. U. Kazykhanov; R. Z. Valiev

doi:10.1063/1.1875754

Plastic flow localization in bulk tungsten with ultrafine microstructure

Q. Wei
, K. T. Ramesh
, E. Ma
, L. J. Kesckes
, R. J. Dowding
, V. U. Kazykhanov
, R. Z. Valiev

Johns Hopkins University
Ccdc Army Research Laboratory
Ufa University of Science and Technology

科研成果: 期刊稿件 › 文章 › 同行评审

129 引用（Scopus）

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.

源语言	英语
文章编号	101907
页（从-至）	1-3
页数	3
期刊	Applied Physics Letters
卷	86
期	10
DOI	https://doi.org/10.1063/1.1875754
出版状态	已出版 - 7 3月 2005
已对外发布	是

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AU - Dowding, R. J.

AU - Kazykhanov, V. U.

AU - Valiev, R. Z.

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AB - 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.

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Plastic flow localization in bulk tungsten with ultrafine microstructure

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