Development of a new microelectrochemical measurement system for in-situ optical microscopic observation of pit initiation processes

Aya Chiba, Izumi Muto, Yu Sugawara, Nobuyoshi Hara

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

The previous microelectrochemical measurement system based on the micro-electrode technique with a glass capillary dramatically advanced our understanding of pitting corrosion over the past ten years. However, by using this system, it was impossible to take in-situ and real-time observations of dissolving surfaces. Here we developed a measurement system for in-situ and real-time observations (lateral resolution: ca. 350 nm, time resolution: 30 images/s) of the initiation processes of pitting corrosion on stainless steel by combining an optical microscope with a microelectrochemical cell. The results of the observations on pit initiation at the manganese sulfide (MnS) inclusions clearly indicated marked differences in the initiation processes of metastable and stable pits. The experimental technique developed here is applicable to a wide range of the local electrochemical analysis of electrode surfaces.

本文言語English
ホスト出版物のタイトルCritical Factors in Localized Corrosion 7
ページ237-245
ページ数9
25
DOI
出版ステータスPublished - 2012
イベント7th Symposium on Critical Factors in Localized Corrosion - 220th ECS Meeting - Boston, MA, United States
継続期間: 2011 10 102011 10 13

出版物シリーズ

名前ECS Transactions
番号25
41
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

Other

Other7th Symposium on Critical Factors in Localized Corrosion - 220th ECS Meeting
国/地域United States
CityBoston, MA
Period11/10/1011/10/13

ASJC Scopus subject areas

  • 工学(全般)

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