The contribution of metallography to the study of some corrosion phenomena observed in copper alloy condenser tubes

Abstract

In thermal and nuclear power plants, numerous corrosion phenomena observed in copper alloy condenser tube nests have been identified by means of metallography. Particular importance has been given in the paper to verification of secondary dezincification, initiated at the boundaries of the α‐grains in copper tubes. Typical phenomena of corrosion under stress and of erosion‐corrosion have been observed in other copper alloy tube nests, with circulation of sea and river water. In some instances a semi‐quantitative check of the phenomenon on the whole tube nest, by means of eddy currents, has been made possible through the simultaneous application of metallographic analysis.

Citation

Galletto, E. and Gasparini, R. (1969), "The contribution of metallography to the study of some corrosion phenomena observed in copper alloy condenser tubes", Anti-Corrosion Methods and Materials, Vol. 16 No. 6, pp. 16-23. https://doi.org/10.1108/eb006773