原子力プラントのレーザ溶接技術に関する研究

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概要

• 論文の詳細を見る

• Laser beam welding is one of the jointing processes by irradiating laser beam on the material surface locally and widely used at various industrial fields. Toshiba has developed various laser-based maintenance and repair technologies and already applied them to several existing nuclear power plants. Laser cladding is a technique to weld the corrosion resistant metal onto a substrate surface by feeding filler wire to improve the corrosion resistance. Temper-bead welding is the heat input process to provide the desired microstructure properties of welded low alloy steels without post weld heat treatment, by inducing proper heat cycle during laser welding. Both laser welding technologies would be performed underwater by blowing the shielding gas for creating the local dry area. In this report, some evaluation results of material characteristics by temper-bead welding to target at Reactor Coolant System nozzle of PWR are presented.

著者

• 椎原 克典

  （株）東芝

• 千田 格

  （株）東芝

• 小畑 稔

  （株）東芝

• 河野 渉

  （株）東芝

• 福田 健

  （株）東芝

• 森島 康雄

  （株）東芝

関連論文

• 原子力プラントのレーザ溶接技術に関する研究
• Residual Stress Improvement of Nickel Base Superalloy Alloy 706 by Laser Peening

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