Journal of Power and Energy Systems
Online ISSN : 1881-3062
Papers
Development of Underwater Laser Cladding and Underwater Laser Seal Welding Techniques for Reactor Components
Takehisa HINOMasataka TAMURAYoshimi TANAKAWataru KOUNOYoshinobu MAKINOShohei KAWANOKeiji MATSUNAGA
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2009 Volume 3 Issue 1 Pages 51-59

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Abstract

Stress corrosion cracking (SCC) has been reported at the aged components in many nuclear power plants. Toshiba has been developing the underwater laser welding. This welding technique can be conducted without draining the water in the reactor vessel. It is beneficial for workers not to exposure the radiation. The welding speed can be attaining twice as fast as that of Gas Tungsten Arc Welding (GTAW). The susceptibility of SCC can also be lower than the Alloy 600 base metal.

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© 2009 by The Japan Society of Mechanical Engineers
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