Failure Analysis on Leakage of Brass Condenser Tube in Thermal Power Plant

[摘要] The corrosion failure analysis of the brass tube in a power plant condenser was conducted by the methods of chemical composition analysis, macro morphology inspection of the leakage point, metallurgical examination, scanning electron microscope and energy spectrum analysis etc. The results indicated that the failure of the brass tube was due to the erosion of the internal surface. The zinc content in the etching pits decreased obviously and dezincification corrosion could be classified. Some suggestions for anti-corrosion measures of the brass tubes were put forward.

[发布机构] State Grid Liaoning Electric Power Research Institute, Shenyang; 110006, China^1;Liaoning Dongke Electric Power Co. Ltd., Shenyang; 110179, China^2

[效力级别] 无线电电子学

[关键词] Chemical composition analysis;Corrosion failure analysis;Dezincification corrosion;Energy spectrum analysis;Internal surfaces;Metallurgical examination;Power plant condensers;Thermal power plants