Effects of quenched-in vacancies on the reverse martensitic phase transformation temperature of the Cu-11.9Al-2.5Mn(wt%) shape memory alloy studied by internal friction | Zendy

Qingzhou Wang | Zendy; LU Dong-mei | Zendy; Cui Chun-Xiang | Zendy; Fusheng Han | Zendy

Open Access

Effects of quenched-in vacancies on the reverse martensitic phase transformation temperature of the Cu-11.9Al-2.5Mn(wt%) shape memory alloy studied by internal friction

Author(s) -

Qingzhou Wang,

LU Dong-mei,

Cui Chun-Xiang,

Fusheng Han

Publication year - 2008

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.57.7083

Subject(s) - materials science , shape memory alloy , alloy , quenching (fluorescence) , diffusionless transformation , internal friction , phase (matter) , thermodynamics , condensed matter physics , martensite , composite material , microstructure , optics , physics , chemistry , organic chemistry , fluorescence

By internal friction techniquethe behaviors of quenched-in vacancies and their influence on the reverse martensitic phase transformation (MT) temperature of the Cu-11.9Al-2.5Mn (wt%) shape memory alloy have been studied. Investigations on the specimens subjected to various cooling regimes indicate that rapid cooling rate leads to relatively high reverse MT temperature. For the water-quenched specimensthe reverse MT temperature bears a non-monotonic relationship to quenching temperature. This phenomenon may be related to the different formation energies of vacancies in ordered and disordered phases.

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