Effect of type-B Portevin-Le Chatelier bands on the onset of necking in uniaxial tension of strip cast AA5754 sheets

Jidong Kang, David S. Wilkinson, J. David Embury, Mukesh Jain, Armand J. Beaudoin

Research output: Contribution to journalArticlepeer-review

Abstract

We present a new model for the effect of type-B Portevin-Le Chatelier (PLC) bands on the early onset of necking in uniaxial tension. The model is used to explain the effect of strain rate on necking strain in strip cast AA5754 sheets. The strong correlation between PLC band strain and PLC markings is delineated through the surface roughness measurements by confocal microscopy as well.

Original languageEnglish (US)
Pages (from-to)499-503
Number of pages5
JournalScripta Materialia
Volume53
Issue number5
DOIs
StatePublished - Sep 2005

Keywords

  • Aluminum alloys
  • Confocal microscopy
  • Ductility
  • Portevin-Le Chatelier effect
  • Tension test

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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