1. bookVolumen 66 (2022): Edición 1 (January 2022)
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Revista
eISSN
1804-1213
Primera edición
03 Apr 2012
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4 veces al año
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access type Acceso abierto

Dissimilar weld joint corrosion in simulated boiler water environment

Publicado en línea: 18 Apr 2022
Volumen & Edición: Volumen 66 (2022) - Edición 1 (January 2022)
Páginas: 16 - 19
Detalles de la revista
License
Formato
Revista
eISSN
1804-1213
Primera edición
03 Apr 2012
Calendario de la edición
4 veces al año
Idiomas
Inglés
Abstract

This paper is focused on the problematics of weld joint corrosive degradation in the boiler water environment. The boiler water is commonly used in power industry. The corrosion experiment simulated the boiler water environment during shutdown, when chemicals may be concentrated in the deposits, or as a result of evaporation. The corrosion experiment was performed on heterogeneous weldments made of P265GH//X6CrNiTi18-9 steels in the environment of stagnant boiler water with the addition of NaCl for 53 days. The data showed only minimal weight losses, and small changes in the measured fracture toughness of the welded joint. At the same time, a tendency for a mechanical weakening of the welded joint with the increasing aggressivity of the boiler water environment was observed. The metallographic analysis was performed to describe the nature of corrosive degradation.

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