Electrochemical impedance spectroscopy study of corrosion of painted cold-rolled and electrogalvanized sheet steel for automotive use

Dattilo, M. (Marion); Prater, R. B. (Raymond B.); Miller, V. R. (Vernon R.), 1941-

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Electrochemical impedance spectroscopy study of corrosion of painted cold-rolled and electrogalvanized sheet steel for automotive use

Published Date:

1990

Series:

Report of investigations (United States. Bureau of Mines) ; 9324

Language:

English

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Electrochemical impedance spectroscopy study of corrosion of painted cold-rolled and electrogalvanized sheet steel for automotive use

Details:

Personal Author:

Dattilo, M. (Marion) ; Prater, R. B. (Raymond B.) ; Miller, V. R. (Vernon R.), 1941- ;

Corporate Authors:

United States. Bureau of Mines.

Description:

"The U.S. Bureau of Mines has been conducting research on the use of waste-derived zinc as a partial replacement for pure zinc in the electrogalvanizing process. The end product of this process is automotive sheet, which has enhanced cosmetic protection over previously used cold-rolled (cr) steel. In this study, primer- coated specimens of cr and electrogalvanized (eg) steel were subjected to the on-vehicle environment and monitored periodically by electrochemical impedance spectroscopy (eis) during immersion in 1m nacl solution. The results of these tests were compared with immersion-only conditions. Scanning electron microscope (sem) and energy-dispersive x-ray (edx) techniques were also used to evaluate the corrosion processes and compare them with atmospheric exposure specimens. Eis was found to measure the corrosion associated with on-vehicle exposure, thus providing an excellent screening technique for evaluation of the performance of eg automotive sheet steel." - NIOSHTIC-2

NIOSHTIC no. 10008686

Subject:

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Document Type:

Report

Collection(s):

National Institute for Occupational Safety and Health

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Supporting Files:

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