Detail publikace

Decreasing thermal stresses in steam generator collector welds area using external cooling

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

12

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"
}