A study of the two-way shape memory effect in Cu-Zn-Al alloys by the thermomechanical cycling method

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Abstract

We have examined the two-way shape memory effect (TWME) in Cu-Zn-Al alloys with a novel thermomechanical cycling method: bending the alloy strips around a cylinder mould and by using a constrained heating/cooling technique. The strength of TWME was affected by the number of training cycles and by the constrained heating temperature. We found that the presence of the β-phase is a crucial factor in generating TWME. After the thermomechanical cycling treatment, we observed the new martensite in addition to the existing martensite in Cu-Zn-Al alloys.

Original languageEnglish
Pages (from-to)326-329
Number of pages4
JournalJournal of Materials Processing Technology
Volume146
Issue number3
DOIs
StatePublished - 2004 Mar 10

Keywords

  • Cu-Zn-Al alloys
  • Martensite
  • Thermomechanical cycling
  • Two-way shape memory effect (TWME)

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