A Modified Chemical Imaging Sensor System for Real‐Time pH Imaging of Accelerated Crevice Corrosion of Stainless Steel (Phys. Status Solidi A 15∕2018). Issue 15 (8th August 2018)

• Record Type: Journal Article
• Authors: Miyamoto, Ko‐ichiro; Sakakita, Sakura; Werner, Carl Frederik; Yoshinobu, Tatsuo
• Other Names: Wagner Patrick guestEditor.; Keusgen Michael guestEditor.; Doll Theodor guestEditor.; Wagner Torsten guestEditor.; Schöning Michael J. guestEditor.
• Is Part Of: Physica status solidi. Volume 215:Issue 15(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-08-08
• Subjects: Solid state physics -- Periodicals; Solids -- Industrial applications -- Periodicals; 530.41
• DOI: 10.1002/pssa.201870033
• Languages: English
• ISSNs: 1862-6300

Abstract

Abstract : Chemical Imaging Sensors In spite of the high corrosion resistance, a surface of stainless steel placed in a narrow gap of the order of microns is known to corrode, which can be a potential hazard, for example, in marine infrastructures. A direct interrogation of this "crevice corrosion" has been difficult due to the very limited accessibility of the confined space. A novel technique visualizes the temporal change of pH distribution inside the gap during corrosion in a geometry where a chemical imaging sensor is placed in the proximity of a steel surface. The observed local decrease of pH down to 2 corresponds to the location where the corrosion is initiated. This is reported by Ko‐ichiro Miyamoto and co‐workers in article number1700963 .