Corrosion comparison of free and roller surfaces of Fe(70)Si(8)B(12)Nb(10) amorphous ribbon

The corrosion resistance of the free surface (FS) and roller surface (RS) of Fe(70)Si(8)B(12)Nb(10) amorphous ribbon was systematically compared in simulated seawater (0.6 M NaCl). The electrochemical method and scanning electron microscopy showed that the FS corrosion resistance was higher than tha...

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Detalles Bibliográficos
Autores principales: Zhang, H., Yan, Z. C., Chen, Q., Qi, Z. G., Feng, Y., Liu, H. Z., Li, X. Y., Wang, W. M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9041945/
https://www.ncbi.nlm.nih.gov/pubmed/35495509
http://dx.doi.org/10.1039/d1ra05747b
Descripción
Sumario:The corrosion resistance of the free surface (FS) and roller surface (RS) of Fe(70)Si(8)B(12)Nb(10) amorphous ribbon was systematically compared in simulated seawater (0.6 M NaCl). The electrochemical method and scanning electron microscopy showed that the FS corrosion resistance was higher than that of the RS. XPS etching and Mott–Schottky tests indicated that the passivation films on the FS and RS were divided into outer and inner layers. In the spinning process, the elements with a higher atomic mass tend to segregate toward the FS, while the elements with a lower atomic mass segregate toward the RS. These results provide data that can be used to improve the quality of melt spinning ribbons and to optimize the manufacturing of involved electric devices.

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