2017 Fall Meeting

Presentation information

Oral presentation

IV. Nuclear Fuel Cycle and Nuclear Materials » 402-1 Nuclear Materials and the Irradiation Behavior

[2I01-07] Stainless Steel

Thu. Sep 14, 2017 10:05 AM - 12:00 PM Room I (C310 - C Block)

Chair:Terumitsu Miura (INSS)

10:50 AM - 11:05 AM

[2I04] Fundamental technology development for evaluation of thermally ageing embrittlement of stainless steel welds used as pressure boundaries in nuclear power plants

(1)Summary

*Yutaka Watanabe1, Toshiaki Horiuchi2, Satoshi Minamoto3, Yoichi Takeda1, Hiroshi Abe1 (1. Tohoku University, 2. Hokkaido University of Science, 3. NIMS)

Keywords:Austenitic stainless steels, Weld metal, Thermal embrittlement

Changes in microstructure of ferrite phase in austenitic stainless steel welds due to thermal aging was investigated. Prediction methods for spinodal decomposition and G-phase precipitation will be proposed. Effect of neutron irradition on microstructural changes was also discussed.