Martensitic transformation behavior under magnetic field in Co-Ni-Al ferromagnetic shape memory alloys

Yuji Sutou; Ryosuke Kainuma; Kiyohito Ishida; Minoru Taya

doi:10.1117/12.484349

13 August 2003 Martensitic transformation behavior under magnetic field in Co-Ni-Al ferromagnetic shape memory alloys

Yuji Sutou, Ryosuke Kainuma, Kiyohito Ishida, Minoru Taya

Proceedings Volume 5053, Smart Structures and Materials 2003: Active Materials: Behavior and Mechanics; (2003) https://doi.org/10.1117/12.484349
Event: Smart Structures and Materials, 2003, San Diego, California, United States

Abstract

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_34.5Ni_35.5Al₃₀ single-crystal specimen showing the martensitic transformation from the paramagnetic austenite (B2) to the ferromagnetic martensite slightly increased under the magnetic field and those temperature shifts were about 1.3°C at 1.0T. It was also observed in the Co_34.5Ni_35.5Al₃₀ single-crystal specimen that the phase boundaries between the austenite and the martensite slightly move by applying the magnetic field of 1.0T. These results are discussed on the basis of a thermodynamic stabilty of the martensite phase under the magnetic field. The martensitic and the magnetic transformation behaviors of the Ni-Al-Co alloys are also reviewed.

Citation Download Citation

Yuji Sutou, Ryosuke Kainuma, Kiyohito Ishida, and Minoru Taya "Martensitic transformation behavior under magnetic field in Co-Ni-Al ferromagnetic shape memory alloys", Proc. SPIE 5053, Smart Structures and Materials 2003: Active Materials: Behavior and Mechanics, (13 August 2003); https://doi.org/10.1117/12.484349

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available