Evaluation of the residual stresses in the welded joint of the header with a connecting pipe of a steam generator after additional thermomechanical treatment

We present the results of numerical evaluation of the possibility of application of additional thermomechanical treatment to the welded joints of the headers with connecting pipes of PGV-1000 steam generators from WWER-1000 reactor units of nuclear power plants with an aim to decrease the level of s...

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Bibliographic Details
Published in:Strength of materials 2010-03, Vol.42 (2), p.182-186
Main Authors: Stepanov, G. V., Kharchenko, V. V., Babutskii, A. I., Trunov, N. B., Piminov, V. A.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Headers
Joining
Materials Science
Nuclear engineering
Nuclear power generation
Pipe
Solid Mechanics
Steam generators
Thermomechanical treatment
Welded joints
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Summary:We present the results of numerical evaluation of the possibility of application of additional thermomechanical treatment to the welded joints of the headers with connecting pipes of PGV-1000 steam generators from WWER-1000 reactor units of nuclear power plants with an aim to decrease the level of stresses formed after maintenance and in the process of subsequent operation. It is shown that this type of treatment is quite promising for extending the service life of the unit.
ISSN:0039-2316
1573-9325
DOI:10.1007/s11223-010-9205-5