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Abstract Corrosion resistance is an important property requirement for materials used in the manufacturing of automobiles, particularly for vehicles that operate on roads treated with de‐icing salt. This implies to test the corrosion resistance of automotive systems, in order to make a good selection of materials. Field‐tests, including stationary and mobile exposures are normally the most reliable ways of doing this, but they are costly and time consuming, as 2–8 years exposure is generally needed for a full assessment of the corrosion resistance. Since, the use of the standard neutral salt spray test, which is well known to give a poor correlation with field data, a large development in the testing procedures has occurred with the use of cyclic corrosion tests, which alternate between pollution phase and wet/dry periods. Today, there are indeed as many accelerated corrosion tests as automotive manufacturers, which are currently used in order to develop and qualify new products against corrosion, to develop new protective coating systems and select materials. In the present work, steel‐ and zinc‐coated materials in cosmetic and crevice configuration were exposed in a large number of accelerated corrosion tests in the automotive industry. From the study, it was shown that the results and consequently the prediction on the lifetime of the same material were very much dependent on which accelerated corrosion test was used. The results were explained in terms of different salt loads applied in the different tests.
LeBozec et al. (Sat,) studied this question.
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