Microstructure and corrosion behavior of Al(95−x)Ni(x)Y(5) (x = 7,10) glassy ribbons

In this work, we correlate the microstructure and passivation of the Al(95−x)Ni(x)Y(5) lightweight glassy ribbons (x = 7 and 10) using various techniques. The overdosed Ni (x = 10) can increase the melt viscosity and then deteriorate its glass-forming ability (GFA), ribbon formability, and Y-deplete...

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Detalles Bibliográficos
Autores principales: Wang, X. N., Feng, Y., Liu, H. Z., Zhang, H., Yan, Z. C., Bai, Y. W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8982189/
https://www.ncbi.nlm.nih.gov/pubmed/35424656
http://dx.doi.org/10.1039/d1ra09189a
Descripción
Sumario:In this work, we correlate the microstructure and passivation of the Al(95−x)Ni(x)Y(5) lightweight glassy ribbons (x = 7 and 10) using various techniques. The overdosed Ni (x = 10) can increase the melt viscosity and then deteriorate its glass-forming ability (GFA), ribbon formability, and Y-depleted extra layer formation. Consequently, the overdosed Ni weakens the passivation stability and corrosion resistance of the as-spun ribbon. The key role of the overdosed Ni can form a strong network and crystalline grain boundary in the amorphous matrix, which can transport Y and O to participate in the oxidation. These results can help us explore a valuable method for designing new Al-based metallic glasses.

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