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Journal Articles

Properties of oxide films on stainless steel exposed to hydrogen peroxide and oxygen in high temperature water

Uchida, Shunsuke; Sato, Tomonori; Tsukada, Takashi; Sato, Yoshiyuki*; Miyazawa, Takahiro*; Terachi, Takumi*; Wada, Yoichi*; Hosokawa, Hideyuki*

Proceedings of International Conference on Water Chemistry of Nuclear Reactor Systems 2006 (CD-ROM), 6 Pages, 2006/10

no abstracts in English

Journal Articles

Effects of hydrogen peroxide on corrosion of stainless steel, 5; Characterization of oxide film with multilateral surface analyses

Miyazawa, Takahiro*; Terachi, Takumi*; Uchida, Shunsuke*; Sato, Tomonori; Tsukada, Takashi; Sato, Yoshiyuki*; Wada, Yoichi*; Hosokawa, Hideyuki*

Journal of Nuclear Science and Technology, 43(8), p.884 - 895, 2006/08

 Times Cited Count:65 Percentile:96.74(Nuclear Science & Technology)

In order to understand corrosion behavior of stainless steel in BWR reactor water conditions, characteristics of oxide films on stainless steel specimens exposed to H$$_{2}$$O$$_{2}$$ and O$$_{2}$$ in high temperature water were determined by multilateral surface analyses. The following points were experimentally confirmed. (1) Oxide layers were divided into inner and outer layers: Outer layers of the specimen exposed to 100ppb H$$_{2}$$O$$_{2}$$ consisted of larger corundum type hematite particles, while inner layersconsisted of very fine Ni rich spinel type magnetite. (2) Outer oxide layers consisted of oxide particles, whose density and size were changed by oxidant concentration. The average diameter decreased with [O$$_{2}$$] and [H$$_{2}$$O$$_{2}$$]. (3) A larger dissolution rate at higher [H$$_{2}$$O$$_{2}$$] resulted in a thinner oxide film with smaller particles.

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