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Takamizawa, Hisashi; Katsuyama, Jinya; Ha, Yoosung; Tobita, Toru; Nishiyama, Yutaka; Onizawa, Kunio
Proceedings of 2019 ASME Pressure Vessels and Piping Conference (PVP 2019) (Internet), 8 Pages, 2019/07
no abstracts in English
Watanabe, Katsutoshi; Jitsukawa, Shiro; Hamada, Shozo; Kodaira, Tsuneo; Hishinuma, Akimichi
Fusion Engineering and Design, 31, p.9 - 15, 1996/00
Times Cited Count：6 Percentile：50.15(Nuclear Science & Technology)no abstracts in English
Ha, Yoosung; Takamizawa, Hisashi; Hanawa, Satoshi; Nishiyama, Yutaka; Ebisawa, Naoki*; Toyama, Takeshi*; Nagai, Yasuyoshi*
no journal, ,
Heat affected zone (HAZ) under stainless overlay cladding of RPV steel was irradiated by iron ions. To investigate the mechanism of irradiation hardening, the solute clusters distributions were confirmed by 3D-Atom Probe Tomography analysis, and the correlation between the irradiation hardening and the microstructure change in HAZ and matrix was discussed. As result of APT analysis, Cu and Si-Mn-Ni clusters were observed in irradiated area, but not in un-irradiated area. The distributions of cluster were different in coarse grain HAZ, fine grain HAZ and matrix, and the amounts of clusters in matrix were significantly lower than that in HAZ. In addition, size, chemical composition and number densities of clusters and their distributions were correlated with irradiation hardening.
Shimodaira, Masaki; Ha, Yoosung; Takamizawa, Hisashi; Seto, Hitoshi*; Katsuyama, Jinya
no journal, ,
no abstracts in English
