Localized Corrosion of Magnesium Alloys in NaCl Solutions Explored by Scanning Electrochemical Microscopy in Feedback Mode

2014 ◽  
Vol 132 ◽  
pp. 377-388 ◽  
Author(s):  
Wenjuan Liu ◽  
Fahe Cao ◽  
Yan Xia ◽  
Linrong Chang ◽  
Jianqing Zhang
Keyword(s):  
Magnesium Alloys ◽  
Scanning Electrochemical Microscopy ◽  
Localized Corrosion ◽  
Feedback Mode ◽  
Electrochemical Microscopy

scholarly journals Use of Amperometric and Potentiometric Probes in Scanning Electrochemical Microscopy for the Spatially-Resolved Monitoring of Severe Localized Corrosion Sites on Aluminum Alloy 2098-T351

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1132 ◽  
Author(s):  
Rejane M. P. da Silva ◽  
Javier Izquierdo ◽  
Mariana X. Milagre ◽  
Abenchara M. Betancor-Abreu ◽  
Isolda Costa ◽  
...  
Keyword(s):  
Scanning Electrochemical Microscopy ◽  
Oxygen Depletion ◽  
Localized Corrosion ◽  
Alloy Surface ◽  
Al Alloy ◽  
Spatially Resolved ◽  
Lower Oxygen ◽  
Local Ph ◽  
Electrochemical Microscopy

Amperometric and potentiometric probes were employed for the detection and characterization of reactive sites on the 2098-T351 Al-alloy (AA2098-T351) using scanning electrochemical microscopy (SECM). Firstly, the probe of concept was performed on a model Mg-Al galvanic pair system using SECM in the amperometric and potentiometric operation modes, in order to address the responsiveness of the probes for the characterization of this galvanic pair system. Next, these sensing probes were employed to characterize the 2098-T351 alloy surface immersed in a saline aqueous solution at ambient temperature. The distribution of reactive sites and the local pH changes associated with severe localized corrosion (SLC) on the alloy surface were imaged and subsequently studied. Higher hydrogen evolution, lower oxygen depletion and acidification occurred at the SLC sites developed on the 2098-T351 Al-alloy.

A Leveling Method Based on Current Feedback Mode of Scanning Electrochemical Microscopy

2013 ◽  
Vol 85 (3) ◽  
pp. 1322-1326 ◽  
Author(s):  
Lianhuan Han ◽  
Ye Yuan ◽  
Jie Zhang ◽  
Xuesen Zhao ◽  
Yongzhi Cao ◽  
...  
Keyword(s):  
Scanning Electrochemical Microscopy ◽  
Current Feedback ◽  
Feedback Mode ◽  
Electrochemical Microscopy

Sensing application in the precursor region of localized corrosion by scanning electrochemical microscopy

RSC Advances ◽  
2014 ◽  
Vol 4 (100) ◽  
pp. 56582-56595 ◽  
Author(s):  
Hong Luo ◽  
Chaofang Dong ◽  
Shujun Gao ◽  
Cuiwei Du ◽  
Kui Xiao ◽  
...  
Keyword(s):  
Scanning Electrochemical Microscopy ◽  
Localized Corrosion ◽  
Sensing Application ◽  
Electrochemical Microscopy

Impacts of Forced Convection Generated via High Precision Stirring on Scanning Electrochemical Microscopy Experiments in Feedback Mode

2018 ◽  
Vol 31 (2) ◽  
pp. 273-281 ◽  
Author(s):  
Timo Raith ◽  
Christian Iffelsberger ◽  
Preety Vatsyayan ◽  
Frank-Michael Matysik
Keyword(s):  
Forced Convection ◽  
High Precision ◽  
Scanning Electrochemical Microscopy ◽  
Feedback Mode ◽  
Electrochemical Microscopy
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