Processing of nanostructured metals and alloys via plastic deformation

Zhu, Yuntian T., Valiev, Ruslan Z., Langdon, Terence G., Tsuji, Nobuhiro and Lu, Ke (2010) Processing of nanostructured metals and alloys via plastic deformation. [in special issue: Structural Metals at Extremes] MRS Bulletin, 35 (12), 977-981.

Abstract

Plastic deformation can effectively produce nanostructured metals and alloys in bulk or surface-layer forms that are suitable for practical structural or functional applications. Such nanostructured materials are porosity-free and contamination-free, and therefore they are ideal for studying fundamental mechanisms and mechanical properties. In this article, we first give an overview of the principles of grain refinement by plastic deformation and an introduction to the reported processing techniques. Then the four most-developed and promising techniques will be described in detail: equal-channel angular pressing, high-pressure torsion, accumulative roll bonding for bulk nanostructured metals, and surface mechanical attrition treatment for nanostructured surface layers.

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Contributors

Author: Terence G. Langdon

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