EVALUATION OF ATMOSPHERIC CORROSION IN SE A ENVIRONMENTS BY MEANS OF WIRE ON SCREW SPECIMENS

This work relates to the use of the ''wire on screw (CLIMAT)'' techniq ue, as the method to study the corrosion in marine atmospheres. The te st took place in a zone of the coast of Tarragona, in several points p laced at different distances of the coast line, estimating the corrosi on variation with regard to the sea distance. By means of a statistica l analysis of the experimental results, lineal correlation functions b etween metereologial characteristics of the atmosphere (T, RH, HDT) an d the contamination (salinity and SO2) were obtained, in conjunction w ith corrosion data. CLIMAT technique confirms the important role of at mospheric salinity in the corrosion process in marine environments.