Kaul, S. N. ; D' Santhoshini, B. Annie ; Abhyankar, A. C. ; Fernandez Barquin, L. ; Henry, Paul (2006) Thermoelastic martensitic transformation in ferromagnetic Ni-Fe-Al alloys: effect of site disorder Applied Physics Letters, 89 (9). 093119_1-093119_3. ISSN 0003-6951
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Official URL: http://apl.aip.org/resource/1/applab/v89/i9/p09311...
Related URL: http://dx.doi.org/10.1063/1.2337271
Abstract
Thermoelastic martensitic transformation from a face-centered-cubic austenite phase to tetragonal martensite phase has been established in a new ternary ferromagnetic alloy system Ni-Fe-Al ("prepared" in different states of site disorder) based on the results of a detailed neutron diffraction, electrical resistivity, and magnetization studies. Ordered (annealed) Ni55Fe20Al25 has a high Curie temperature TC≫300 K and an extremely wide temperature range over which martensite and austenite phases coexist. By comparison, site-disordered (quenched) Ni55Fe20Al25 has a lower TC (=225 K), higher ductility (shape memory effect), higher saturation magnetization, and a very well-defined martensitic transformation around TC.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| ID Code: | 29772 |
| Deposited On: | 23 Dec 2010 04:48 |
| Last Modified: | 06 Jun 2011 09:15 |
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