Appearance of a negative loop on the polarization curves of Pd78Si16Cu6-xCrx amorphous alloys in phosphate buffered saline solution

S. Hiromoto, K. Asami, A. P. Tsai, M. Sumita, T. Hanawa

研究成果: Article査読

6 被引用数 (Scopus)

抄録

As-received and polished Pd78Si16Cu6-xCrx (x= 0-6 at%) amorphous alloys were cathodically and anodically polarized in a deaerated phosphate buffered saline solution. The curves of the as-received alloy showed a region where a cathodic current flowed in the passive region, i.e. a negative loop, after the anodic active region of palladium dissolution. In the negative loop region, a certain surface concentration of silicon and chromium oxide was generated, and proton reduction occurred on the oxide rapidly enough to suppress the anodic reaction. The proton was generated with the anodic dissolution of Pd-H formed in the cathodic polarization region.

本文言語English
ページ(範囲)1767-1779
ページ数13
ジャーナルCorrosion Science
43
9
DOI
出版ステータスPublished - 2001 9月
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 化学工学(全般)
  • 材料科学(全般)

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