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Article
A novel combined severe plastic deformation method for producing thin-walled ultrafine grained cylindrical tubes
Materials Letters (2015)
Abstract

A novel severe plastic deformation (SPD) process entitled combined parallel tubular channel angular pressing (PTCAP) and tube backward extrusion (TBE) is proposed for producing thin-walled ultrafine-grained (UFG) tubes. In this new combined SPD approach, the PTCAP and TBE processes are consequently applied to the tube material in which a severe plastic strain is applied to produce a UFG thin-walled tube. This technique was performed on an AZ31 magnesium tube, and a remarkable grain refinement was achieved. The results showed that this method could easily produce a high strength thin walled tube. The microhardness increased significantly to 70 HV after the process from an initial value of 38 HV. (C) 2014 Elsevier B.V. All rights reserved. Link to Full-Text Articles : http://www.sciencedirect.com/science/article/pii/S0167577X14022733

Keywords
  • severe plastic deformation,
  • thin-walled tube,
  • az31,
  • microstructure,
  • grain boundaries,
  • nanocrystalline materials,
  • magnesium alloy az31,
  • angular pressing tcap,
  • microstructure evolution,
  • mechanical-properties,
  • channel,
  • recrystallization
Publication Date
March 15, 2015
Publisher Statement
Cc7an Times Cited:0 Cited References Count:17
Citation Information
"A novel combined severe plastic deformation method for producing thin-walled ultrafine grained cylindrical tubes" Materials Letters Vol. 143 (2015)
Available at: http://works.bepress.com/facultyofengineering_universityofmalaya/230/