Influence of Zinc Ions on Initial Stage of Localized Corrosion of Zn and Zn–Al Alloy Coated Steels with Photon Rupture Method

Sakairi, Masatoshi; Uchida, Yoshiyuki; Kikuchi, Tatsuya; Takahashi, Hideaki

Influence of Zinc Ions on Initial Stage of Localized Corrosion of Zn and Zn–Al Alloy Coated Steels with Photon Rupture Method

Sakairi, Masatoshi; Uchida, Yoshiyuki; Kikuchi, Tatsuya et al.

ISIJ International, 2008, 48(7), 988-993

Permalink : https://hdl.handle.net/2115/76149

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ISIJ Int., Vol. 48 (2008), No. 7, pp. 988-993	pdf	1.55 MB	436

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アクセス権	open access
URI	https://hdl.handle.net/2115/76149
タイトル	Influence of Zinc Ions on Initial Stage of Localized Corrosion of Zn and Zn–Al Alloy Coated Steels with Photon Rupture Method
著者	Sakairi, Masatoshi ; Uchida, Yoshiyuki ; Kikuchi, Tatsuya ; Takahashi, Hideaki
e-Rad_Researcher 50280847 著者名 Sakairi, Masatoshi
著者名 Uchida, Yoshiyuki
e-Rad_Researcher 60374584 著者名 Kikuchi, Tatsuya
著者名 Takahashi, Hideaki
言語	英語
キーワード	coated steel
	localized corrosion
	Zn ions
	laser beam irradiation
	corrosion resistance
発行日	2008-07-15
出版者	日本鉄鋼協会
出版者	Iron and Steel Institute of Japan
収録物名	ISIJ International
巻(号)	48(7)
ページ	988-993
抄録	The effect of pre-dissolved Zn ions in the solutions on the initial stage of localized corrosion after oxide films of Zn and Zn–Al alloy coated steels were removed by a photon rupture method, focused pulsed Nd-YAG laser beam irradiation, was investigated electrochemically. Zn ions can be inhibited dissolution of the Zn coated layer by precipitation of zinc hydroxide, which is formed by hydrolysis reaction of dissolved Zn ions in neutral buffer solutions. However, Zn ions do not affect the dissolution of a Zn–Al alloy coated layer. The absence of inhibition of the Zn–Al layer dissolution can be explained by pH change to lower values at the irradiated area by the hydrolysis reaction of the dissolved Al ions. The effect of Zn ions on corrosion inhibition of the coated layer by the photon rupture method established here was in good agreement with polarization experiments.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	著作権は日本鉄鋼協会にある
PISSN	0915-1559
EISSN	1347-5460
NCID	AA10680712
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.2355/isijinternational.48.988