Corrosion protection afforded by praseodymium conversion film on Mg alloy AZNd in simulated biological fluid studied by scanning electrochemical microscopy

Jamali, Sina S., Moulton, Simon E., Tallman, Dennis E., Forsyth, Maria, Weber, Jan, Mirabedini, Azadeh and Wallace, Gordon G. 2015, Corrosion protection afforded by praseodymium conversion film on Mg alloy AZNd in simulated biological fluid studied by scanning electrochemical microscopy, Journal of electroanalytical chemistry, vol. 739, pp. 211-217, doi: 10.1016/j.jelechem.2014.11.033.

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Title Corrosion protection afforded by praseodymium conversion film on Mg alloy AZNd in simulated biological fluid studied by scanning electrochemical microscopy
Author(s) Jamali, Sina S.
Moulton, Simon E.
Tallman, Dennis E.
Forsyth, MariaORCID iD for Forsyth, Maria orcid.org/0000-0002-4273-8105
Weber, Jan
Mirabedini, Azadeh
Wallace, Gordon G.
Journal name Journal of electroanalytical chemistry
Volume number 739
Start page 211
End page 217
Total pages 7
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015-02-15
ISSN 1572-6657
Keyword(s) Science & Technology
Physical Sciences
Chemistry, Analytical
Electrochemistry
Chemistry
Surface passivation
Mg alloy
Scanning electrochemical microscopy
Corrosion
Rare earth
RARE-EARTH-ELEMENTS
MAGNESIUM ALLOY
CELL-LINES
AC-SECM
COATINGS
CERIUM
RESISTANCE
PROLIFERATION
PRETREATMENT
GADOLINIUM
Summary Surface passivation of AZNd Mg alloy with Pr(NO3)3 is studied using scanning electrochemical microscopy (SECM) in surface generation/tip collection (SG/TC) and AC modes. Corrosion protection afforded by the Pr treatment and the degradation mechanism in a simulated biological environment was examined on a local scale and compared with non-treated AZNd. SG/TC mode results revealed a drastic decrease in H2 evolution due to the Pr treatment. Mapping the local insulating characteristics using AC-SECM showed higher conductivity of the surface where H2 evolution was most favorable.
Language eng
DOI 10.1016/j.jelechem.2014.11.033
Field of Research 039999 Chemical Sciences not elsewhere classified
0301 Analytical Chemistry
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30075395

Document type: Journal Article
Collection: Institute for Frontier Materials
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