2024-03-28T18:21:04Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/2420882021-06-01T02:01:42Zcom_10261_98com_10261_3col_10261_351
Kinetic Analysis of the Transformation from 14M Martensite to L21 Austenite in Ni-Fe-Ga Melt Spun Ribbons
Manchón-Gordón, Alejandro F.
López-Martín, Raul
Ipus, Jhon J.
Blázquez, Javier S.
Svec, Peter
Conde, Clara F.
Conde, Alejandro
Heusler
Martensitic transformation
Kinetic analysis
Melt-spinning
In this study, the non-isothermal kinetics of the martensitic transition from 14M modulated
martensite to austenite phase in Ni55Fe19Ga26 ribbons obtained by melt-spinning has been analyzed.
The proximity of the martensitic transition to room temperature makes it very sensitive to pressure
and subtle differences for different pieces of the ribbon (ascribed to stresses stored in the ribbon
during its rapid solidification process). Despite the dispersion in the characteristic parameters of
the transition, a general behavior is observed with a decreasing activation energy as the heating
rate increases due to the nucleation driven character of the transition. It has been shown that a
first-order autocatalysis can describe the temperature evolution of the austenite fraction using only
two experimental temperatures. Predicted curves are in good agreement with experimental data
Peer reviewed
2021-05-31T10:02:55Z
2021-05-31T10:02:55Z
2021
artículo
http://purl.org/coar/resource_type/c_6501
Metals, 11: 849 (2021)
http://hdl.handle.net/10261/242088
10.3390/met11060849
en
Publisher's version
https://doi.org/10.3390/met11060849
Sí
open
Multidisciplinary Digital Publishing Institute