skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Corrosion behavior of zinc-nickel alloy electrodeposited coatings

Abstract

Various types of zinc-electrocoated steel sheets are used to improve the durability of car bodies. Among these coatings, the Zn-Ni alloy has higher corrosion resistance than pure Zn, as well as better welding and painting properties. The corrosion mechanism of the Zn-Ni alloy has been investigated mainly on the basis of accelerated tests and electrochemical measurements. There are few data about long-term corrosion tests. In the present study, the behavior of unpainted Zn-Ni alloy coated steel was studied during 3 years of exposure in industrial and marine environments. Electrochemical impedance spectroscopy (EIS) and surface analysis (scanning electron microscopy [SEM] and Auger electron spectroscopy [AES]) were the experimental techniques used. Long-term atmospheric corrosion mechanism of Zn-Ni coatings was discussed and compared with that proposed based on short-term tests.

Authors:
 [1]; ; ;  [2];  [3]
  1. USIMINAS, Ipatinga, Minas Gerais (Brazil)
  2. UFRJ, Rio de Janeiro (Brazil)
  3. Univ. Pierre et M. Curie, Paris (France)
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
684429
Resource Type:
Journal Article
Resource Relation:
Journal Name: Corrosion; Journal Volume: 55; Journal Issue: 8; Other Information: PBD: Aug 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 33 ADVANCED PROPULSION SYSTEMS; CORROSION; ZINC ALLOYS; NICKEL ALLOYS; AUTOMOBILES; ELECTRODEPOSITED COATINGS; STEELS; ENVIRONMENT; SPECTROSCOPY; MICROSCOPY

Citation Formats

Fabri Miranda, F.J., Margarit, I.C.P., Mattos, O.R., Barcia, O.E., and Wiart, R.. Corrosion behavior of zinc-nickel alloy electrodeposited coatings. United States: N. p., 1999. Web. doi:10.5006/1.3284028.
Fabri Miranda, F.J., Margarit, I.C.P., Mattos, O.R., Barcia, O.E., & Wiart, R.. Corrosion behavior of zinc-nickel alloy electrodeposited coatings. United States. doi:10.5006/1.3284028.
Fabri Miranda, F.J., Margarit, I.C.P., Mattos, O.R., Barcia, O.E., and Wiart, R.. Sun . "Corrosion behavior of zinc-nickel alloy electrodeposited coatings". United States. doi:10.5006/1.3284028.
@article{osti_684429,
title = {Corrosion behavior of zinc-nickel alloy electrodeposited coatings},
author = {Fabri Miranda, F.J. and Margarit, I.C.P. and Mattos, O.R. and Barcia, O.E. and Wiart, R.},
abstractNote = {Various types of zinc-electrocoated steel sheets are used to improve the durability of car bodies. Among these coatings, the Zn-Ni alloy has higher corrosion resistance than pure Zn, as well as better welding and painting properties. The corrosion mechanism of the Zn-Ni alloy has been investigated mainly on the basis of accelerated tests and electrochemical measurements. There are few data about long-term corrosion tests. In the present study, the behavior of unpainted Zn-Ni alloy coated steel was studied during 3 years of exposure in industrial and marine environments. Electrochemical impedance spectroscopy (EIS) and surface analysis (scanning electron microscopy [SEM] and Auger electron spectroscopy [AES]) were the experimental techniques used. Long-term atmospheric corrosion mechanism of Zn-Ni coatings was discussed and compared with that proposed based on short-term tests.},
doi = {10.5006/1.3284028},
journal = {Corrosion},
number = 8,
volume = 55,
place = {United States},
year = {Sun Aug 01 00:00:00 EDT 1999},
month = {Sun Aug 01 00:00:00 EDT 1999}
}