Effect of grain refinement on the mechanical and shape memory properties of Cu-Al-Mn base alloys

Y. Sutou, T. Omori, T. Okamoto, R. Kainuma, K. Ishida

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)

Abstract

The effect of grain refinement on the mechanical and shape memory (SM) properties of the β phase CuAl-Mn alloys with L21 structure were investigated by optical microscopy, scanning electron microscopy, differential scanning calorimetry and tensile-testing. Additions of V or Cr to the Cu-Al-Mn ternary alloy in amounts over 0.5at.%V or 1at.%Cr were effective in refining the β phase grain sizes to less than 200μm. The Ms temperature decreased with increasing V or Cr content, obeying the Hall-Petch type relation with the β-grain size. The mechanical properties were improved, but the SM and pseudoelastic properties were not improved by grain refinement.

Original languageEnglish
Pages (from-to)Pr8185-Pr8190
JournalJournal De Physique. IV : JP
Volume11
Issue number8
DOIs
Publication statusPublished - 2001 Nov
Event5th European Symposium on Martensitic Transformations and Shape Memory Alloys ESOMAT'2000 - Villa Olmo, Como, Italy
Duration: 2000 Sep 42000 Sep 8

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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