Development of an Improved Cosmetic Corrosion Test for Finished Aluminum Autobody Panels 2007-01-0417
Since 2000, an Aluminum Cosmetic Corrosion task group within the SAE Automotive Corrosion and Protection (ACAP) Committee has existed. The task group has pursued the goal of establishing a standard test method for in-laboratory cosmetic corrosion evaluations of finished aluminum auto body panels. A cooperative program uniting OEM, supplier, and consultants has been created and has been supported in part by USAMP (AMD 309) and the U.S. Department of Energy. Prior to this committee's formation, numerous laboratory corrosion test environments have been used to evaluate the performance of painted aluminum closure panels. However, correlations between these laboratory test results and in-service performance have not been established. Thus, the primary objective of this task group's project was to identify an accelerated laboratory test method that correlates well with in-service performance. In this paper the correlation between several common laboratory corrosion tests and in-service corrosion is detailed.
Francine Bovard, Janice Tardiff, Tracie Jafolla, Duncan McCune, Greg Courval, Kevin A. Smith, Fred Lee, John Repp, Sridhar Ramamurthy, R. James Shaffer, Florina M. Vartolas
Alcoa, Ford Motor Co., General Motors Corporation, Quality/Statistics, Novelis Inc., Auto Technology Company, Atlas Material Testing Technology LLC, Corrpro Companies, Inc., The University of Western Ontario, DaimlerChrylser Corporation
SAE World Congress & Exhibition
Body Engineering and Design, Glass Applications, Corrosion Prevention and Design Tools-SP-2069, SAE 2007 Transactions Journal of Materials and Manufacturing-V116-5