Development of an Improved Cosmetic Corrosion Test By the Automotive and Aluminum Industries for Finished Aluminum Autobody Panels 2003-01-1235
The Automotive Aluminum Alliance in conjunction with SAE ACAP founded a corrosion task group in 2000 with a goal to establish an in-laboratory cosmetic corrosion test for finished aluminum auto body panels, which provides a good correlation with in-service performance. Development of this test involves a number of key steps that include: (1) Establishing a reservoir of standard test materials to provide a well-defined and consistent frame of reference for comparing test results; (2) Defining a real-world performance for the reference materials through on-vehicle tests conducted in the U.S. and Canada; (3) Evaluating existing laboratory, proving ground, and outdoor tests; (4) Conducting statistically designed experiments to evaluate the effects of cyclic-test variables; (5) Comparing corrosion mechanisms of laboratory and on-vehicle tests; and (6) Conducting a round robin test program to determine the precision of the new test. Several of these key steps have been accomplished. The progress of this test development program will be discussed.
Citation: Courval, G., Smith, K., Meade, C., Lutze, F. et al., "Development of an Improved Cosmetic Corrosion Test By the Automotive and Aluminum Industries for Finished Aluminum Autobody Panels," SAE Technical Paper 2003-01-1235, 2003, https://doi.org/10.4271/2003-01-1235. Download Citation
Greg Courval, Kevin A. Smith, Cindy Meade, Frank W. Lutze, Francine Bovard, Tracie Piscopink
Alcan International, Auto Technology Company, National Exposure Testing, ACT Laboratories, Inc., Alcoa, General Motors Corporation
SAE 2003 World Congress & Exhibition
Advances in Coatings & Corrosion Prevention-SP-1770