Published June 2009 | Version v1
Miscellaneous Metadata-only

Underwater laser beam welding

Creators

  • 1. Toshiba Corp., Yokohama, Kanagawa (Japan)

Description

Recently, stress corrosion cracking (SCC) has been observed in aged components of nuclear power plants located in primary water environments and subjected to high radiation exposure levels. Toshiba has developed an Underwater Laser Beam Welding (ULBW) process that applies SCC-resistant weld metal directly onto surface of the aged components, serving as a method of maintenance and repair. This paper provides an update on ULBW using filler material Alloy 52 and development of welding machine for Reactor Coolant System (RCS) nozzle of PWR. (author)

Part of:
The 14th national symposium on power and energy systems (SPES 2009)

Additional details

Publishing Information

Imprint Title
The 14th national symposium on power and energy systems (SPES 2009)
Imprint Pagination
536 p.
Journal Page Range
p. 77-78

Conference

Title
14. national symposium on power and energy systems
Acronym
SPES 2009
Dates
29-30 Jun 2009
Place
Tsukuba, Ibaraki (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
44012115
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Conference, Non-conventional Literature
Descriptors DEI
CLADDING; CRACKS; FILLER METALS; LASER WELDING; MAINTENANCE; NOZZLES; PWR TYPE REACTORS; REACTOR COOLING SYSTEMS; REPAIR; STRESS CORROSION; UNDERWATER
Descriptors DEC
CHEMICAL REACTIONS; COOLING SYSTEMS; CORROSION; DEPOSITION; ENERGY SYSTEMS; ENRICHED URANIUM REACTORS; FABRICATION; JOINING; LEVELS; POWER REACTORS; REACTOR COMPONENTS; REACTORS; SURFACE COATING; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS; WELDING

Optional Information

Notes
3 refs., 9 figs.