[1I01-04] Reactor Pressure Vessel Steel 1

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)

[1I01] Ni-Si-Mn precipitates in reactor pressure vessel steelsmelting point of ternary compounds

*Yoshitaka Matsukawa¹, Shimon Odawara¹, Hideki Yuya², Minako Yoshikawa², Hiroaki Muta³, Ryuta Kasada⁴, Kenta Yoshida⁴, Kazunori Morishita⁵, Masatake Yamaguchi⁶ (1. Kumamoto University, 2. Chubu Electric Power Inc., 3. Osaka University, 4. Tohoku University, 5. Kyoto University, 6. JAEA)

Keywords:

light water reactors,reactor pressure vessel steels,embrittlement,lifetime prediction,precipitation

Melting point of Ni-Si-Mn ternary compounds has been measured by experiments, in order to assess the accuracy of existing thermodynamic databases involved in the Thermo-calc 2025a.