The corrosion and passivity of sputtered Mg-Ti alloys

Guang Ling Song; Kinga A. Unocic; Harry Meyer; Ercan Cakmak; Michael P. Brady; Paul E. Gannon; Phil Himmer; Quinn Andrews

doi:10.1016/j.corsci.2015.11.028

The corrosion and passivity of sputtered Mg-Ti alloys

Guang Ling Song, Kinga A. Unocic, Harry Meyer, Ercan Cakmak, Michael P. Brady, Paul E. Gannon, Phil Himmer, Quinn Andrews

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

29 Scopus citations

Abstract

This study explored the possibility of forming a "stainless" Mg-Ti alloy. The electrochemical behavior of magnetron-sputtered Mg-Ti alloys was measured in a NaCl solution, and the surface films on the alloys were examined by XPS, SEM and TEM. Increased corrosion resistance was observed with increased Ti content in the sputtered Mg-Ti alloys, but passive-like behavior was not reached until the Ti level (atomic %) was higher than the Mg level. The surface film that formed on sputtered Mg-Ti based alloys in NaCl solution was thick, discontinuous and non-protective, whereas a thin, continuous and protective Mg and Ti oxide film was formed on a sputtered Ti-Mg based alloy.

Original language	English
Pages (from-to)	36-46
Number of pages	11
Journal	Corrosion Science
Volume	104
DOIs	https://doi.org/10.1016/j.corsci.2015.11.028
State	Published - Mar 1 2016

Funding

This research was sponsored by the U.S. DOE EERE Vehicle Technologies Office . This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan ( http://energy.gov/downloads/doe-public-access-plan ).

Funders	Funder number
U.S. DOE EERE

Keywords

A. Mg alloy
B. SEM
B. TEM
B. XPS
C. Passivity

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10.1016/j.corsci.2015.11.028

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abstract = "This study explored the possibility of forming a {"}stainless{"} Mg-Ti alloy. The electrochemical behavior of magnetron-sputtered Mg-Ti alloys was measured in a NaCl solution, and the surface films on the alloys were examined by XPS, SEM and TEM. Increased corrosion resistance was observed with increased Ti content in the sputtered Mg-Ti alloys, but passive-like behavior was not reached until the Ti level (atomic %) was higher than the Mg level. The surface film that formed on sputtered Mg-Ti based alloys in NaCl solution was thick, discontinuous and non-protective, whereas a thin, continuous and protective Mg and Ti oxide film was formed on a sputtered Ti-Mg based alloy.",

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AU - Song, Guang Ling

AU - Unocic, Kinga A.

AU - Meyer, Harry

AU - Cakmak, Ercan

AU - Brady, Michael P.

AU - Gannon, Paul E.

AU - Himmer, Phil

AU - Andrews, Quinn

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AB - This study explored the possibility of forming a "stainless" Mg-Ti alloy. The electrochemical behavior of magnetron-sputtered Mg-Ti alloys was measured in a NaCl solution, and the surface films on the alloys were examined by XPS, SEM and TEM. Increased corrosion resistance was observed with increased Ti content in the sputtered Mg-Ti alloys, but passive-like behavior was not reached until the Ti level (atomic %) was higher than the Mg level. The surface film that formed on sputtered Mg-Ti based alloys in NaCl solution was thick, discontinuous and non-protective, whereas a thin, continuous and protective Mg and Ti oxide film was formed on a sputtered Ti-Mg based alloy.

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The corrosion and passivity of sputtered Mg-Ti alloys

Abstract

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Keywords

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