Journal of Materials Research

Articles

Bulk nanostructured materials by large strain extrusion machining

W. Moscosoa1, M.R. Shankara2, J.B. Manna3, W.D. Comptona3 and S. Chandrasekara3 c1

a1 Center for Materials Processing and Tribology, School of Industrial Engineering, Purdue University, West Lafayette, Indiana 47907-2023

a2 Department of Industrial Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261

a3 Center for Materials Processing and Tribology, School of Industrial Engineering, Purdue University, West Lafayette, Indiana 47907-2023

Abstract

Large strain extrusion machining (LSEM) is presented as a method of severe plastic deformation for the creation of bulk nanostructured materials. This method combines inherent advantages afforded by large strain deformation in chip formation by machining, with simultaneous dimensional control of extrusion in a single step of deformation. Bulk nanostructured materials in the form of foils, plates, and bars of controlled dimensions are shown to result by appropriately controlling the geometric parameters of the deformation in large strain extrusion machining.

(Received May 27 2006)

(Accepted October 04 2006)

Key Words:

  • Machining;
  • Nanostructure

Correspondence:

c1 Address all correspondence to this author. e-mail: chandy@ecn.purdue.edu

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