Título
Transformation temperatures and electrochemical behavior of polycrystalline Fe-Doped Ni-Mn-Ga and Co-Ni-Ga Alloys
Autor
MARIO SANCHEZ CARRILLO
JUAN PABLO FLORES DE LOS RIOS
CLAUDIA GEORGINA NAVA DINO
Horacio Flores Zúñiga
Roberto Narro García
María Cristina Maldonado Orozco
FRANCISCO HUMBERTO ESTUPIÑAN LOPEZ
JOSE GUADALUPE CHACON NAVA
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: http://doi.org/10.20964/2018.07.08
Materias
Resumen o descripción
"The effect of Fe addition on martensitic transformation temperatures and electrochemical behavior was studied in polycrystalline Ni51.4Mn24.8-XGa23.8FeX alloys (1<x<2.2) and Co38.3Ni32.1Ga29.6 as alternative to Ni-Mn-Ga alloys which are used as ferromagnetic shape memory alloys. The analysis of corrosion rates was conducted by cyclic polarization curves with potentiostat-galvanostat equipment. The corrosion morphologies were also analyzed by scanning electron microscopy (SEM). The kinetics of corrosion was found to decrease with increasing Fe content in the alloy, while the martensitic transformation temperatures increased with increasing Fe content. The Co38.3Ni32.1Ga29.6 alloy shows i(corr) lower than the Ni-Mn-Ga alloy. From results, the studied alloys exhibited a general dissolution in the anodic branch where a spontaneous passive zone occurred at certain potential and some elements like Co, Mn and also Ni were present in a higher percentage in corrosion deposits."
Editor
ESG
Fecha de publicación
2018
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Relación
&
Nava-Dino, C.G.. (2018). Transformation Temperatures and Electrochemical behavior of Polycrystalline Fe-Doped Ni-Mn-Ga and Co-Ni-Ga Alloys. International Journal of Electrochemical Science. 13. 6666-6675. 10.20964/2018.07.08.
Sugerencia de citación
Sanchez-Carrillo, Mario
Repositorio Orígen
Repositorio IPICYT
Descargas
262