Objetivo
Metallurgical failures in high temperature power plant are often caused by cracking in the heat affected zones of weldments. The incidence of cracking in the coarse grained region of the heat affected zone has been overcome to some extent by the use of low heat input multipass welding operations. If a steel could be developed which is resistant to grain coarsening and other adverse high temperature effects more economical high heat input welding practices could be used in the fabrication process without the attendant risk of cracking. It has been observed that the avoidance of such cracking may result in cracks forming, over a more extended time scale, in the fine grained heat affected zones. The mechanisms involved in this type of cracking will be examined. Close liaison with the major United Kingdom user of high temperature generating plant will be maintained.
Tema(s)
Convocatoria de propuestas
Data not availableRégimen de financiación
Data not availableCoordinador
SA13 2NG Port Talbot
Reino Unido