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

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公開日
2006-11
権利情報
  • https://www.elsevier.com/tdm/userlicense/1.0/
  • https://www.elsevier.com/legal/tdmrep-license
DOI
  • 10.1016/j.msea.2006.02.085
公開者
Elsevier BV

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説明

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 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 increases due to the development of texture formation, a textured sheet with d / t  = 1.34 shows a large tan  ϕ of about 0.09 in the martensite phase. Damping alloys with tensile strength over 850 MPa and tan  ϕ of about 0.04 can be obtained by controlling the relative grain size and texture.

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