EPRI weld-related research activities. Final report

Technical Report · Fri Jul 01 00:00:00 EDT 1994

OSTI ID:10189391

Markovits, C C; Giannuzzi, A J ^[1]

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1. Structural Integrity Associates, Inc., San Jose, CA (United States)

As nuclear and fossil fuel power plants age, maintenance and operation issues pose a serious concern in terms of plant life extension. In fact, maintenance capability has been targeted as the main issue facing aging plants today. Welding--and particularly in situ weld repair--represents a field-ready process that allows utilities to avoid replacement of costly components and systems. Even when replacement is required, improved welding processes and approaches can increase component reliability. This report summarizes EPRI research into the development of new welding techniques and processes, responses to general utility weld-related issues, and guidelines for improvement in welding applications. Example topics include advanced welding materials, reconditioning methods, dissimilar metal welds, temperbead weld repair, and induction heating stress improvement. Each topic, described in full detail in an EPRI report, is summarized in this document to provide an overview of the results and pertinent technical justifications. Also included is insight into future EPRI activities in areas such as welding technology transfer, new welding technologies, and an assessment of welding economics to assist utilities with run, repair, retire decisions.

• Research Organization: Electric Power Research Inst., Palo Alto, CA (United States); Structural Integrity Associates, Inc., San Jose, CA (United States)
• Sponsoring Organization: Electric Power Research Inst., Palo Alto, CA (United States)
• OSTI ID: 10189391
• Report Number(s): EPRI-TR-104307; ON: UN95001369; TRN: 94:020451
• Resource Relation: Other Information: PBD: Jul 1994
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING
POLICY AND ECONOMY
36 MATERIALS SCIENCE
22 GENERAL STUDIES OF NUCLEAR REACTORS
20 FOSSIL-FUELED POWER PLANTS
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
EPRI
RESEARCH PROGRAMS
WELDING
NUCLEAR POWER PLANTS
REACTOR MAINTENANCE
FOSSIL-FUEL POWER PLANTS
RECOMMENDATIONS
WELDED JOINTS
TECHNOLOGY ASSESSMENT
REPAIR
BOILERS
GAS TURBINES
BWR TYPE REACTORS
REACTOR INTERNALS
PIPES
STEAM SYSTEMS
290500
360101
220200
200104
210100
RESEARCH, DEVELOPMENT, DEMONSTRATION, AND COMMERCIALIZATION
PREPARATION AND FABRICATION
COMPONENTS AND ACCESSORIES
COMPONENTS
POWER REACTORS
NONBREEDING
LIGHT-WATER MODERATED
BOILING WATER COOLED