Managing welded high-temperature components in power plant

AbstractWelds are the most common site of damage in high-temperature components. This involves large costs of control, repair and replacement. This paper discusses this issue from the viewpoint of two end users, i.e. Enel in Italy, and Iberdrola in Spain. General information on the above two organisations, and to the relevance of this subject, is given. After a brief description of the practices they apply to face relevant problems, experiences of failure analysis and testing involving welds, exposed to high temperature, are reported.