Deformation and anelastic recovery of pure magnesium and AZ31B alloy investigated by AE

Yunping Li, Manabu Enoki

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Extruded pure magnesium and AZ31B alloy were compressed parallel and vertical to extrusion direction. Deformation behavior was investigated in monotonous compression by acoustic emission (AE). Anelastic recovery behavior was observed in cyclic compression-quick unloading-recovery process. AE method was applied in each recovery process to investigate detwinning behavior at different strain levels. It was found that twinned samples vertically compressed easily detwin compared to parallel samples in both pure magnesium and AZ31B alloy. Compared to pure magnesium, twinning in AZ31B alloy is more stable and shows weaker psuedoelasticity. A model of strain dependence on cumulative AE counts from detwinning was proposed and fitting results are in good agreement with experimental data.

Original languageEnglish
Pages (from-to)2343-2348
Number of pages6
JournalMaterials Transactions
Volume48
Issue number9
DOIs
Publication statusPublished - 2007 Sep 1

Keywords

  • AZ31B alloy
  • Acoustic emission
  • Anelastic recovery
  • Detwinning
  • Pure magnesium
  • Twinning

ASJC Scopus subject areas

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

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