Accession Number:

ADA379676

Title:

Critical Factors for the Transition from Chromate to Chromate-Free Corrosion Protection

Descriptive Note:

Annual technical rept.

Corporate Author:

OHIO STATE UNIV COLUMBUS

Personal Author(s):

• Buchheit, Rudolph G.

Report Date:

1999-12-01

Pagination or Media Count:

90.0

Abstract:

The overall objective of this research program is to acquire a fundamental understanding of the chemical and physical processes and mechanisms of corrosion protection by chromate-based coatings applied to metal surfaces with a specific focus on corrosion protection of aluminum alloys. The key functional attributes of chromate coating formation and breakdown must be identified and understood so that ultimately, they might be duplicated using environmentally friendly corrosion protection methods. Environmentally friendly corrosion protection methods must be found to replace chromate corrosion protection methods because environmental regulations are forcing elimination of products and processes like chromates whose formulations use or produce toxic substances.

Descriptors:

• *CORROSION INHIBITION
• ALUMINUM ALLOYS
• TOXICITY
• CHROMATES
• ELECTROCHEMISTRY
• SURFACES
• COATINGS
• CHEMICAL REACTIONS

Subject Categories:

• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE