A Modified Chemical Imaging Sensor System for Real-Time pH Imaging of Accelerated Crevice Corrosion of Stainless Steel

作者:Miyamoto Ko ichiro*; Sakakita Sakura; Werner Carl Frederik; Yoshinobu Tatsuo
来源:Physica Status Solidi A-Applications and Materials Science, 2018, 215(15): 1700963.
DOI:10.1002/pssa.201700963

摘要

The measurement system of a chemical imaging sensor is combined with the circuitry for polarization of a metal test piece. The surface of the metal test piece is brought into contact with the sensor surface forming a crevice of about 12 mu m width. The course of initiation and propagation of corrosion are observed as serial images of pH in the crevice. A local change of the pH value down to 2 is observed in synchronization with the change of the anodic current.

  • 出版日期2018-8-8