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This paper presents the results obtained in a 5 year study of the galvanic protection afforded to the base steel by a 55 % Al‐Zn coating and its comparison with a galvanized coatin., in different types of atmospheres. While both coatings hardly supply cathodic protection (CP) in rural and urban atmospheres, in marine and industrial type atmospheres they present excellent galvanic performance, which is conditioned only by the duration of the anodic material on the steel substrate. This duration is considerably greater in the 55% Al‐Zn coating, due to its lower corrosion rate in the atmosphere.

An analysis of fatigue damage in a stabilizer bar in the front suspension (McPherson) of a passenger car was performed. A cumulative fatigue damage theory ( linear damage rule) together with experimental and analytical techniques of stress analysis are used to determine the fatigue damage imposed on the stabilizer bar, under both laboratory and actual conditions. Finite element models of the stabilizer bars were used to determine the local stresses at critical regions. These stresses were then measured in the laboratory, by using strain gauges bonded on the material. The assessments of fatigue damage of the stabilizer bar under actual conditions were performed with a component mounted on a vehicle, which was driven over di erent road surfaces and at di erent velocities. The results of both experiment types are correlated and discussed.

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