Application of Small Spot XPS and Static SIMS in the Study of Corrosion Mechanisms in Painted Precoated Automotive Steels Dept. of Chemistry and Geochemistry, Colorado School of Mines Golden, CO

Format:

Conference/Event

Author/Creator:

Van Ooij, W. J., author.

Conference Name:

1989 SAE Automotive Corrosion and Prevention Conference and Exposition (1989-12-04 : Dearborn, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1989

Summary:

The polymer-metal interface in painted precoated galvanized steel has been investigated using X-Ray Photoelectron Spectroscopy (XPS) and static secondary Ion Mass Spectrometry (SIMS). Small spot XPS was used to identify the type of corrosion product formed in cyclic corrosion testing as 6Zn (OH)2 .ZnCl2, as opposed to 4Zn (OH)2 .ZnCl2 which is formed in atmospheric corrosion conditions. Analysis of the paint-metal interface by means of static SIMS demonstrated adsorption of an organic constituent of the paint system on the metal which was identified as uncured epoxy. This effect seemed to be dependent on the curing conditions and was observed to correlate with the performance of the material in a scab corrosion test. The results demonstrate that XPS and static SIMS are very powerful tools for the study of the chemistry at paint-metal interfaces

Notes:

Vendor supplied data

Publisher Number:

892559

Access Restriction:

Restricted for use by site license