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Characterization of Co-Ni Based Ferromagnetic Shape Memory Alloy

자성 Co-Ni 계 형상기억합금의 특성

  • Han, Ji-Won (Department of Mechanical Engineering, Hoseo University) ;
  • Park, Sung Bum (Department of Safety Engineering, Dongguk University)
  • 한지원 (호서대학교 기계공학과) ;
  • 박성범 (동국대학교 안전공학과)
  • Received : 2015.04.22
  • Accepted : 2015.07.02
  • Published : 2015.08.31

Abstract

The magnetic shape memory alloys have recently received a lot of attention due to the considerable progress achieved in understanding the particular importance and the development of the factors. Among these alloys, the ferromagnetic Co-Ni- alloys have been concerned specially because of the thermoelastic character of the fcc (g) - bct (a) martensitic transformation which exhibits under the action of the temperature (shape memory effect), the stress (superelasticity) and the magnetic field (magnetoelasticity). The morphological, the crystallographical, and the thermal characteristics of thermally induced martensite in Co-35.3Ni-11.3Al(wt.%) and Co-28.1Ni-47.4Fe-3.3Ti (wt.%) alloy have been investigated by the scanning electron microscope (SEM), the X-ray Diffraction (XRD), and the differential scanning calorimeter (DSC).

Acknowledgement

Supported by : 호서대학교

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