Corrosion resistance of electroplatedZn-Co alloy coating|AN Mao-zhong(安茂忠),YANG Zhe-long(杨哲龙),ZHANG Jing-shuang(张景双),LI Wen-liang(李文良),TU Zhen-mi(屠振密)-《中国有色金属学报》官方网站|全网首发|论文开放获取

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 12 No. 1 February 2002

Corrosion resistance of electroplated
Zn-Co alloy coating

AN Mao-zhong(安茂忠),YANG Zhe-long(杨哲龙),ZHANG Jing-shuang(张景双),
LI Wen-liang(李文良)，TU Zhen-mi(屠振密)

（Department of Applied Chemistry,Harbin Institute of Technology,
Harbin 150001,China）

Abstract:By the NSS test and the test in SO₂ gas atmosphere and detecting the φ_corr—t curves,R_p—t curves and the cyclic voltammogram curves,the corrosion resistance of the electroplated Zn-Co alloy coating was studied.The corrosion resistance of the electroplated Zn-Co alloy coating is three times higher than that of the galvanized coating. Because the corrosion resistance of the Zn-Co alloy coating is especially remarkable in SO₂ gas atmosphere,it is particularly fit to be used as a protective coating in industrial atmosphere.The reason why the Zn-Co alloy coating has such a high corrosion resistance is that its corrosive product has a comparatively great role in depressing the corrosive process.

Key words: electroplating; Zn-Co alloy; corrosion resistance

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW