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Development of Underwater Laser Cladding and Underwater Laser Seal Welding Techniques for Reactor Components (II)

[+] Author Affiliations
Masataka Tamura, Shohei Kawano, Wataru Kouno, Yasushi Kanazawa

Toshiba Corporation, Yokohama, Japan

Paper No. ICONE14-89346, pp. 491-494; 4 pages
doi:10.1115/ICONE14-89346
From:
  • 14th International Conference on Nuclear Engineering
  • Volume 1: Plant Operations, Maintenance and Life Cycle; Component Reliability and Materials Issues; Codes, Standards, Licensing and Regulatory Issues; Fuel Cycle and High Level Waste Management
  • Miami, Florida, USA, July 17–20, 2006
  • Conference Sponsors: Nuclear Engineering Division
  • ISBN: 0-7918-4242-8 | eISBN: 0-7918-3783-1
  • Copyright © 2006 by ASME

abstract

Stress corrosion cracking (SCC) is one of the major reasons to reduce the reliability of aged reactor components. Toshiba has been developing underwater laser welding onto surface of the aged components as maintenance and repair techniques. Because most of the reactor internal components to apply this underwater laser welding technique have 3-dimensional shape, effect of welding positions and welded shapes are examined and presented in this report.

Copyright © 2006 by ASME

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