Effects of grain size and texture on damping properties of Cu-Al-Mn-based shape memory alloys

Y. Sutou, T. Omori, N. Koeda, R. Kainuma, K. Ishida

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

Effects of grain size and texture on the damping properties in the Cu-Al-Mn-based shape memory alloys were investigated mainly by dynamic mechanical spectrometry. Dynamic damping tan φ{symbol} obtained from the martensite single-phase specimens increases with increasing relative grain size d/t, where d and t indicate the grain size and the specimen sheet thickness, respectively. Moreover, tan φ{symbol} increases due to the development of texture formation, a textured sheet with d/t = 1.34 shows a large tan φ{symbol} of about 0.09 in the martensite phase. Damping alloys with tensile strength over 850 MPa and tan φ{symbol} of about 0.04 can be obtained by controlling the relative grain size and texture.

Original languageEnglish
Pages (from-to)743-746
Number of pages4
JournalMaterials Science and Engineering A
Volume438-440
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2006 Nov 25

Keywords

  • Cu-Al-Mn-based alloy
  • Damping
  • Internal friction
  • Shape memory alloy
  • Texture

ASJC Scopus subject areas

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

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