Influence of Copper Content of the Base Steel on the Corrosion Behavior of Nickel-coated Steel Sheets

Influence of copper content in a base steel on corrosion resistance of a nickel-coated steel sheet in solutions as strongly corrosive high-acid beverage has been studied, and the following facts were revealed. Copper addition to the base steel greatly improves the corrosion resistance of the nickel-...

Full description

Saved in:

Bibliographic Details
Published in:	ISIJ International Vol. 37; no. 8; pp. 815 - 820
Main Authors:	Ohga, Tomonari, Mizuguchi, Toshinori, Oyagi, Yashichi
Format:	Journal Article
Language:	English
Published:	Tokyo The Iron and Steel Institute of Japan 01-01-1997 Iron and Steel Institute of Japan
Subjects:	Applied sciences copper-added steel Corrosion Corrosion prevention corrosion resistance Exact sciences and technology Metals. Metallurgy nickel-coated steel sheet welded can Corrosion resistance Copper addition Acid corrosion Thin sheet Carbon steel Nickel Steel Experimental study Corrosion protection Coatings Surface treatment
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Influence of copper content in a base steel on corrosion resistance of a nickel-coated steel sheet in solutions as strongly corrosive high-acid beverage has been studied, and the following facts were revealed. Copper addition to the base steel greatly improves the corrosion resistance of the nickel-coated steel sheet in the citric acid and sodium chloride solution. This improvement is resulted from a reduction in the couple current between the nickel and the base steel in the pinholes formed in the nickel coating layer. The reduction in the couple current is considered to arise from shifting corrosion potential of the copper-added steel to the noble direction and increasing in anodic polarization. The enrichment of copper on the corroded steel surface is considered to bring about great changes in electrochemical properties. The decrease in the couple current between the nickel and the base steel is also obtained under the variation of an area ratio of anode to cathode. Copper addition to the base steel also gives high corrosion resistance to the nickel-coated steel sheet in the simulated beverages, such as those containing citric acid, citric acid and sodium chloride, malic acid and, lactic acid except containing phosphoric acid.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1
ISSN:	0915-1559 1347-5460
DOI:	10.2355/isijinternational.37.815