Dendritic zinc growth on the edges of flat steel strip during electro galvanizing

被引：9

作者：

Bengoa, L. N. ^{[1
,5
]}

Bruno, S. ^{[2
]}

Lazzarino, H. A. ^{[3
]}

Sere, P. R. ^{[1
,5
]}

Egli, W. A. ^{[1
,4
]}

机构：

[1] Ctr Paints & Coatings Dev, Paints & Coatings Electrochem Anal Grp, Av 52 e-121 & 122, RA-1900 La Plata, Buenos Aires, Argentina

[2] TenarisSiderca, REDE AR, RA-2804 Campana, Argentina

[3] Ternium, Siderar, RA-1888 Florencio Varela, Argentina

[4] Comis Invest Ceintif Prov Buenos Aires, RA-1900 La Plata, Buenos Aires, Argentina

[5] Natl Univ La Plata, Engn Sch, RA-1900 La Plata, Buenos Aires, Argentina

来源：

INTERNATIONAL CONGRESS OF SCIENCE AND TECHNOLOGY OF METALLURGY AND MATERIALS, SAM - CONAMET 2013 | 2015年 / 8卷

关键词：

Electroplating; Dendritic growth; Zinc; Galvanization;

D O I：

10.1016/j.mspro.2015.04.183

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dendritic growth on strip edges during continuous zinc electroplating of flat steel strip for the automotive industry is a well-known problem. They produce surface defects during the stamping process. In this work the effect of the electrolytic process variables on dendrites formation is studied. Zinc was electrodeposited on rotating steel discs. This new experimental configuration reproduces the hydrodynamic conditions and the current distribution found on the strip edge in an industrial zinc electroplating line. The tangential velocity of the outer edge of the discs was adjusted to a value equal to the relative speed between strip and fluid used in the industry. The effect of current density, temperature and edge roughness was evaluated. All these variables have a great influence on the size and morphology of dendrites. (C) 2015 The Authors. Published by Elsevier Ltd.

引用

页码：1174 / 1183

页数：10

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