The elasticity of both the austenite and martensite states of a NiMnGa Heusler alloy was investigated by using a continuous wave method. A magnetic field was used to detwin the martensite. The symmetrized elastic constants of both austenite and martensite were determined by exiting different modes of wave propagation. In austenite, the shear elastic constant (C11-C12)/2 equals 7Gpz, which means the alloy is very soft as is typically the case in near second order shape memory alloys. Similarily, in martensite, (C11-C12)/2 equals 9GPa. Moreover, in the martensitic state the two rhombohedral elastic constants, C44 and C66, equaling 51GPa and 49GPz, respectively are almost the same.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
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.