TY - JOUR
T1 - Martensitic transformation behavior under magnetic field in Co-Ni-Al ferromagnetic shape memory alloys
AU - Sutou, Y.
AU - Kainuma, R.
AU - Ishida, K.
AU - Taya, M.
PY - 2003/11/27
Y1 - 2003/11/27
N2 - Effect of the magnetic field on the martensitic transformation of Co-Ni-Al single-crystal was investigated by differential thermal analysis (DTA) and the in-situ microstructure observation under magnetic field. The martensitic transformation temperatures Ms and Mf of the Co 34.5Ni35.5Al30 (at.%) single-crystal specimen showing the martensitic transformation from the paramagnetic austenite (B2) to the ferromagnetic martensite (L10) slightly increased under the magnetic field and those temperatures shifts were about 1.3 °C at 1.0 T. It was also observed in the Co34.5Ni35.5Al30 single-crystal specimen that the phase boundaries between the austenite and the martensite slightly move by applying the magnetic field of 1.0 T. These results are discussed on the basis of a thermodynamic stability of the martensite phase under the magnetic field. The martensitic and the magnetic transformation behaviors of the Ni-Al-Co alloys are also reviewed.
AB - Effect of the magnetic field on the martensitic transformation of Co-Ni-Al single-crystal was investigated by differential thermal analysis (DTA) and the in-situ microstructure observation under magnetic field. The martensitic transformation temperatures Ms and Mf of the Co 34.5Ni35.5Al30 (at.%) single-crystal specimen showing the martensitic transformation from the paramagnetic austenite (B2) to the ferromagnetic martensite (L10) slightly increased under the magnetic field and those temperatures shifts were about 1.3 °C at 1.0 T. It was also observed in the Co34.5Ni35.5Al30 single-crystal specimen that the phase boundaries between the austenite and the martensite slightly move by applying the magnetic field of 1.0 T. These results are discussed on the basis of a thermodynamic stability of the martensite phase under the magnetic field. The martensitic and the magnetic transformation behaviors of the Ni-Al-Co alloys are also reviewed.
KW - Co-Ni-Al
KW - Ferromagnetic shape memory alloys
KW - Magnetic field-induced martencitic transformation
KW - Martensitic transformation
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U2 - 10.1117/12.484349
DO - 10.1117/12.484349
M3 - Conference article
AN - SCOPUS:0242525654
SN - 0277-786X
VL - 5053
SP - 159
EP - 168
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
T2 - PROCEEDINGS OF SPIE SPIE - The International Society for Optical Engineering: Smart Structures and Materials 2003 Active Materials: Behavior and Mechanics
Y2 - 3 March 2003 through 6 March 2003
ER -