The corrosion resistance of hot dip galvanized steel pretreated with Bis-functional silanes modified with microsilica

被引：98

作者：

Montemor, MF

Cabral, AM

Zheludkevich, ML

Ferreira, MGS

机构：

[1] Inst Super Tecn, ICEMS, DEQ, P-1049001 Lisbon, Portugal

[2] Inst Super Engn Lisboa, P-1950062 Lisbon, Portugal

[3] Univ Aveiro, Dept Ceram & Glass Eng, P-3810193 Aveiro, Portugal

来源：

SURFACE & COATINGS TECHNOLOGY | 2006年 / 200卷 / 09期

关键词：

bis-silane; corrosion protection; pretreatment; XPS; Auger spectroscopy; SVET;

D O I：

10.1016/j.surfcoat.2004.11.012

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The present work aims at understanding the corrosion behaviour of hot dip galvanized steel pretreated with either bis-1,2[triethoxysilyl]ethane silane (BTSE) or bis-[triethoxysilylpropyl] tetrasulfide (BTESPT) modified with microparticles Of SiO2. The corrosion resistance was evaluated by electrochemical impedance spectroscopy, potentiodynamic polarization and by the scanning vibrational electrode technique (SVET) during immersion in dilute NaCl solutions. The films formed on the galvanized steel substrate were characterized by X-ray photoelectron spectroscopy, Auger electron spectroscopy and atomic force microscopy. The results show that the pretreatments based on silane films modified with silica particles provide corrosion protection for hot dip galvanized steel during immersion in NaCl-containing solutions. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：2875 / 2885

页数：11

共 21 条

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