Electrochemical study of lap-joint corrosion of steel with metallic coatings

Authors
Bautista, A Gonzalez, JA Otero, E Morcillo, M
Citation
A. Bautista et al., Electrochemical study of lap-joint corrosion of steel with metallic coatings, J COAT TECH, 73(920), 2001, pp. 73-79
Citations number
16
Categorie Soggetti
Material Science & Engineering
Journal title
JOURNAL OF COATINGS TECHNOLOGY
ISSN journal
03618773 → ACNP
Volume
73
Issue
920
Year of publication
2001
Pages
73 - 79
Database
ISI
SICI code
0361-8773(200109)73:920<73:ESOLCO>2.0.ZU;2-C
Abstract
This paper analyzes the lap-joint corrosion susceptibility of steel with fo ur different types of protective metallic coatings (hot-dip galvanized, gal vannealed, electrogalvanized, and 55% Al-Zn). Measurements are made using e lectrochemical impedance spectroscopy (EIS) and current electrochemical noi se with specially designed sensors. The results obtained indicate the impor tance of the crevice water retention for determining the risk of corrosion of lapped parts.