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

Alejandro Samaniego; Kateryna Gusieva; I Llorente; Sebastian Feliu; Nick Birbilis

doi:10.1016/j.corsci.2014.08.015

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

Alejandro Samaniego, Kateryna Gusieva, I Llorente, Sebastian Feliu, Nick Birbilis

Materials Science & Engineering

Research output: Contribution to journal › Article › Research › peer-review

38 Citations (Scopus)

Abstract

In 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 α-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.

Original language	English
Pages (from-to)	101-110
Number of pages	10
Journal	Corrosion Science
Volume	89
Issue number	C
DOIs	https://doi.org/10.1016/j.corsci.2014.08.015
Publication status	Published - 2014

Keywords

Alloy
AZ31
Lutetium
Magnesium
Magnesium alloy
Rare earth elements

Access to Document

10.1016/j.corsci.2014.08.015

Cite this

@article{17f995dc43834a358f8631eab183a7fb,

title = "Exploring the possibility of protective surface oxides upon Mg alloy AZ31 via lutetium additions",

abstract = "In 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 α-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.",

keywords = "Alloy, AZ31, Lutetium, Magnesium, Magnesium alloy, Rare earth elements",

author = "Alejandro Samaniego and Kateryna Gusieva and I Llorente and Sebastian Feliu and Nick Birbilis",

year = "2014",

doi = "10.1016/j.corsci.2014.08.015",

language = "English",

volume = "89",

pages = "101--110",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier",

number = "C",

}

TY - JOUR

T1 - Exploring the possibility of protective surface oxides upon Mg alloy AZ31 via lutetium additions

AU - Samaniego, Alejandro

AU - Gusieva, Kateryna

AU - Llorente, I

AU - Feliu, Sebastian

AU - Birbilis, Nick

PY - 2014

Y1 - 2014

N2 - In 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 α-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.

AB - In 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 α-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.

KW - Alloy

KW - AZ31

KW - Lutetium

KW - Magnesium

KW - Magnesium alloy

KW - Rare earth elements

UR - http://www.scopus.com/inward/record.url?scp=85027926412&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2014.08.015

DO - 10.1016/j.corsci.2014.08.015

M3 - Article

SN - 0010-938X

VL - 89

SP - 101

EP - 110

JO - Corrosion Science

JF - Corrosion Science

IS - C

ER -

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

Abstract

Keywords

Access to Document

Other files and links

Cite this