Published 1985 | Version v1
Book

Underclad crack development of steam generators tube sheets and reactor vessels nozzles in PWR plants

  • 1. Framatome, Departement Materiaux, 92 - Paris-la-Defense (France)
  • 2. Creusot-Loire Industrie, Centre de Recherche des Materiaux, 71 - Le Creusot (France)
  • 3. Electricite de France, Departement Etude des Materiaux, Les Renardieres, 77 - Moret-sur-Loing (France)

Description

Defects formed, before stress relieving treatment, under the coating of tube plates of steam generators and vessel pipes are cold cracks formed in the segregation zone during surface coating without pre- and postheating of the 2nd layers and eventually of the following coating layers. To solve this problem, the conditions of pre- and post-heating are reinforced and applied to all the coating layers. 13 refs

Abstract (French)

Les defauts formes avant traitement de detensionnement sous le revetement de plaques tubulaires de generateurs de vapeur et de tubulures de cuves sont des fissures a froid formees dans les zones de segregation lors du depot sans prechauffage et postchauffage des 2e couches et eventuellement des couches suivantes de revetement. Afin de resoudre le probleme, on renforce et on etend au depot de l'ensemble des couches les conditions de pre et postchauffage
Part of:
Contribution of materials investigation to the resolution of problems encountered in PWR plants

Additional details

Additional titles

Original title (French)
Fissuration a froid sous revetement des plaques tubulaires de generateur de vapeur et tubulures de cuve des centrales a eau pressurisee

Publishing Information

Publisher
SFEN.
Imprint Place
Paris (France)
Imprint Title
Contribution of materials investigation to the resolution of problems encountered in PWR plants
Imprint Pagination
562 p.
Journal Page Range
p. 115-125.

Conference

Title
International symposium on contribution of materials investigation to the resolution of problems encountered in PWR plants.
Dates
2-6 Sep 1985.
Place
Fontevraud (France).

Optional Information

Notes
Imprint:Contribution des expertises sur materiaux a la resolution des problemes rencontres dans les REP.;Colloque international.