Welcome to CDC Stacks | Electrochemical Impedance Spectroscopy Study of Corrosion of Painted Cold-Rolled and Electrogalvanized Sheet Steel for Automotive Use - 10452 | National Institute for Occupational Safety and Health
Stacks Logo
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.
 
 
Help
Clear All Simple Search
Advanced Search
Electrochemical Impedance Spectroscopy Study of Corrosion of Painted Cold-Rolled and Electrogalvanized Sheet Steel for Automotive Use
  • Published Date:
    1/1/1990
Filetype[PDF - 6.46 MB]


This document cannot be previewed automatically as it exceeds 5 MB
Please click the thumbnail image to view the document.
Electrochemical Impedance Spectroscopy Study of Corrosion of Painted Cold-Rolled and Electrogalvanized Sheet Steel for Automotive Use
Details:
  • 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 NaCI 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.

  • Supporting Files:
    No Additional Files