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Título

Exploring the possibility of protective surface oxides upon Mg alloy AZ31 via lutetium additions

AutorSamaniego, Alejandro; Gusieva, K.; Llorente, Irene; Feliú Jr., S.; Birbilis, N.
Palabras claveLutetium
Magnesium alloy
Rare earth elements
Magnesium
Alloy
AZ31
Fecha de publicación2014
EditorElsevier
CitaciónCorrosion Science 89: 101-110 (2014)
ResumenIn the present study, Mg-alloy AZ31 was alloyed with low-level lutetium (Lu) additions, with the aim of generating a more protective surface oxide/film. To stimulate Lu-rich surface films, AZ31 + Lu specimens were heat treated at 400 °C for up to 300 min. Lu was not detected in the ¿-Mg matrix by EDXS; instead it was incorporated in Al¿Mn¿Lu particles. Micro-additions of Lu promoted a significant reduction of corrosion rates of as-cast AZ31, although Lu was not detected in the surface oxide as determined by XPS. The subsequent heat treatment of as-cast AZ31 + Lu had a negative impact upon corrosion.
URIhttp://hdl.handle.net/10261/112355
DOI10.1016/j.corsci.2014.08.015
Identificadoresdoi: 10.1016/j.corsci.2014.08.015
issn: 0010-938X
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