Corrosion performance and mechanical properties of sputter-deposited MgY and MgGd alloys

Schlüter, Kristina, Shi, Zhiming, Zamponi, Christiane, Cao, Fuyong, Quandt, Eckhard and Atrens, Andrej (2014) Corrosion performance and mechanical properties of sputter-deposited MgY and MgGd alloys. Corrosion Science, 78 43-54. doi:10.1016/j.corsci.2013.08.027


Author Schlüter, Kristina
Shi, Zhiming
Zamponi, Christiane
Cao, Fuyong
Quandt, Eckhard
Atrens, Andrej
Title Corrosion performance and mechanical properties of sputter-deposited MgY and MgGd alloys
Journal name Corrosion Science   Check publisher's open access policy
ISSN 0010-938X
1879-0496
Publication date 2014-01-01
Sub-type Article (original research)
DOI 10.1016/j.corsci.2013.08.027
Open Access Status
Volume 78
Start page 43
End page 54
Total pages 12
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon
Language eng
Subject 2500 Materials Science
1500 Chemical Engineering
1600 Chemistry
Formatted abstract
Highlights
• Corrosion rates did not change much with Y and Gd alloying content.
• Corrosion rates of solid solution alloys can be comparable with that of HP Mg.
• Strengthening was ascribed to solid solution strengthening or short-range order.

Films of MgY and MgGd alloys were deposited on silicon wafers by magnetron sputtering. The microstructure, crystal structure and mechanical properties were evaluated using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and tensile testing. Corrosion was evaluated for immersion in 3.5% NaCl solution saturated with Mg(OH)2. TEM, SEM and XRD indicated that the alloys were single phase. There was no significant change of corrosion rate with alloy content. The strength increased with alloying content, and ductility decreased concomitantly. Strengthening was consistent with solid solution strengthening or short-range order.
Keyword Magnesium
Sputtered films
Polarisation
SEM
Weight loss
XRD
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mechanical & Mining Engineering Publications
Official 2015 Collection
 
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