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KRAUTSCHNEIDER, R. JOCH, L.
Originální název
Decreasing thermal stresses in steam generator collector welds area using external cooling
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
Presented paper deals with possibility of external cooling of steam generator welds area to decrease internal tensile thermal stresses which are one of the causes of cracking in this area. On various WWER-440 nuclear power plants (NPP) steam generators (SG) occurred quite serious problem of cracking in weld joints connecting primary collectors to the SG vessels nozzle. The cause of this cracking is stress corrosion cracking (SCC) mechanism. Results of these analyses showed that by proper external cooling of the weld area it is possible not just to decrease significantly existing tensile stresses, but to change them into compressive ones. This of course would have great impact on crack occurrence and growth.
Klíčová slova
steam generator; thermal stresses; external cooling; stress corrosion cracking; dissimilar metal weld
Autoři
KRAUTSCHNEIDER, R.; JOCH, L.
Rok RIV
2014
Vydáno
5. 5. 2016
Nakladatel
Elsevier
ISSN
2211-8128
Periodikum
Procedia Materials Science
Ročník
12
Číslo
1
Stát
Nizozemsko
Strany od
Strany do
17
Strany počet
6
URL
http://www.sciencedirect.com/science/article/pii/S2211812816000122
Plný text v Digitální knihovně
http://hdl.handle.net/11012/204196
BibTex
@inproceedings{BUT109173, author="Roman {Krautschneider} and Lukáš {Joch}", title="Decreasing thermal stresses in steam generator collector welds area using external cooling", booktitle="Procedia Materials Science", year="2016", journal="Procedia Materials Science", volume="12", number="1", pages="12--17", publisher="Elsevier", doi="10.1016/j.mspro.2016.03.003", issn="2211-8128", url="http://www.sciencedirect.com/science/article/pii/S2211812816000122" }