Water irradiation by high-frequency ultrasonic wave: Effects on properties of passive film formed on stainless steel

O. Lavigne, Y. Takeda, T. Shoji, K. Sakaguchi

研究成果: Article査読

21 被引用数 (Scopus)

抄録

In this paper an aqueous solution was irradiated with a 1.63 MHz ultrasonic wave. It is shown that if stainless steel can passivate under dynamic polarization in this medium, under static polarization, the latter does not show any repassivation behaviour with time. This is attributed to a diminution of the diffusion layer thickness that is developed at the electrode/electrolyte interface, which is associated with a production of H2 species by sonolysis and which maintains reductive conditions at the interface. The oxide film formed under ultrasonic irradiation for 1 h at a passive potential of +0.2 VSCE shows an early stage of passivation and an increased disordered state, which implies a considerable decrease in the corrosion resistance behaviour of the sample. The polarization resistance of the stainless steel Rp is divided by a value of 4.5 under ultrasonic conditions.

本文言語English
ページ(範囲)1287-1294
ページ数8
ジャーナルUltrasonics Sonochemistry
18
6
DOI
出版ステータスPublished - 2011 11

ASJC Scopus subject areas

  • 化学工学(その他)
  • 環境化学
  • 放射線学、核医学およびイメージング
  • 音響学および超音波学
  • 有機化学
  • 無機化学

フィンガープリント

「Water irradiation by high-frequency ultrasonic wave: Effects on properties of passive film formed on stainless steel」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル