| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10634246 | Scripta Materialia | 2005 | 5 Pages |
Abstract
The driving force of premartensitic transformation (PT) based on the electron-transverse acoustic (TA) phonon interaction Hamiltonian was first calculated. The driving force of Ni2MnGa alloy is about 172.2Â meV, larger than that of NiTi-Fe or Ni-Al alloy. The nucleation rate of PT has also been investigated in the interaction system. Considering the electron-phonon interaction and the condensation of TA phonon, double sine-Gordon equation of atomic phase angle has been proposed to study the nonlinear characteristics of PT and the electron-TA phonon coupling mechanism may be taken as its main mechanism.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J.F. Wan, X.L. Lei, S.P. Chen, T.Y. Hsu,