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Predicting Durability of Decorative Chromium Plating in Minutes with the Electrolytic Corrosion (EC) Test
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English
Abstract
Understanding obtained through a research study of corrosion of decorative chromium plating systems is reviewed. From this knowledge, the development of an electrolytic corrosion test (the EC test) is traced. Measurements of corrosion sites show that electrolysis for 2 min (6 min elapsed time) in the EC test produces corrosion sites more like those from one year of Detroit service than those produced in 16 h of CASS test exposure. The EC test has been employed for four years with satisfactory results as a monitor of durability of automotive parts plated in a production line.
The paper outlines the mechanism by which nickel corrodes, describes the EC test equipment, and gives the results of an evaluation made by GM production personnel.
Citation
Saur, R., "Predicting Durability of Decorative Chromium Plating in Minutes with the Electrolytic Corrosion (EC) Test," SAE Technical Paper 730211, 1973, https://doi.org/10.4271/730211.Also In
References
- Standard Method of Copper-Accelerated Acetic Acid Salt Spray (Fog) Testing (CASS Test) ASTM Designation B368-65
- Standard Method of Corrosion Testing of Decorative Chromium Plating by the Corrodkote Procedure ASTM Designation B380-65
- Saur R. L. Plating 48 1961 1310
- Saur R. L. Plating 52 1965 663
- Saur R. L. Basco R. P. Plating 53 1966 35
- Saur R. L. Plating 54 1967 393
- Saur R. L. Plating 53 1966 1124
- Saur R. L. Basco R. P. Plating 53 1966 320
- Saur R. L. Basco R. P. Plating 53 1966 981