| Revista: | Revista mexicana de física |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000425936 |
| ISSN: | 0035-001X |
| Autors: | Lino Zapata, F.M1 Ríos Jara, D1 Sánchez Llamazares, J.L1 |
| Institucions: | 1Instituto Potosino de Investigación Científica y Tecnológica A.C., San Luis Potosí. México |
| Any: | 2017 |
| Període: | Sep-Oct |
| Volum: | 63 |
| Número: | 5 |
| País: | México |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, teórico |
| Resumen en inglés | Kinetic arrest (KA) of martensitic transformation (MT) has been observed in as-solidified Ni52.2Mn34.3In13.5 melt-spun ribbons; a characterization by dc magnetization measurements was carried out. These alloy ribbons transform martensitically from a single austenitic (AST) parent phase with B2-type crystal structure. For an applied magnetic field μ 0 H of 1 T and up to 9 T, a moderate but progressive KA of the MT is observed. The metastability of the non-equilibrium field-cooled glassy state was characterized by introducing thermal and magnetic field fluctuations. It was found that the total magnetization difference ( Δ σ) between the zero field-cooling (ZFC) and field-cooling (FC) pathways of the temperature dependence of magnetization Δ σ( T) shows irreversible and reversible components; the former decreases as the temperature decreases. After a short thermal annealing of 10 min at 1073 K AST shows a highly ordered L21-type crystal structure and the kinetic arrest of martensitic transformation is no longer observed suggesting a connection between the crystal structure order of austenite and the appearance of the kinetic arrest phenomenon |
| Disciplines | Física y astronomía |
| Paraules clau: | Física, Aleaciones de memoria de forma ferromagnética, Cintas hiladas, Detención cinética, Transformación martensítica |
| Keyword: | Physics, Martensitic transformation, Ferromagnetic shape memory alloys, Melt-spun ribbons, Kinetic arrest |
| Text complet: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
