Welding of steam turbine components
The welding of heat-resistant materials used for steam turbine components results in many dramatic changes in the material properties and generates internal stresses in the component. Both can strongly influence the safety and reliability of the turbine. This review summarises and evaluates the present state of knowledge, based mainly on the results of the international cooperative programme, COST 505. The review examines the influence of different welding procedures, parameters, consumables and different heat-treatment parameters on the microstructure and, hence, on the mechanical properties of forged and cast 1% CrMoV high-temperature steels used in steam turbine plant produced according to European and US specifications. Both similar and dissimilar metal joints between 1% CrMoV and 12% CrMoV steels were investigated and conditions determined in which high-efficiency automatic and semi-automatic processes could be used effectively.
Bibliographic Reference: EUR 14304 EN (1992) 205 pp., FS, ECU 30
ISBN: ISBN 92-826-4377-8
Record Number: 199211228 / Last updated on: 1994-11-29
Original language: en
Available languages: en