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Fujii, Kazumi*; Iwanami, Masaru*; Ishioka, Shinichi*; Kaneko, Tetsuji*; Tanaka, Norihiko*; Kawaharada, Yoshiyuki*; Yokoyama, Yutaka*; Umehara, Ryuji*; Kato, Chiaki; Ueno, Fumiyoshi; et al.
no journal, ,
no abstracts in English
Kaneko, Tetsuji*; Tanaka, Norihiko*; Kawaharada, Yoshiyuki*; Fujii, Kazumi*; Iwanami, Masaru*; Ishioka, Shinichi*; Yokoyama, Yutaka*; Umehara, Ryuji*; Kato, Chiaki; Ueno, Fumiyoshi; et al.
no journal, ,
no abstracts in English
-ray irradiation on inhibition of steel corrosion in diluted sea waterSato, Tomonori; Kato, Chiaki; Motooka, Takafumi; Ueno, Fumiyoshi; Nakano, Junichi; Kaneko, Tetsuji*; Tanaka, Norihiko*; Kawaharada, Yoshiyuki*; Fujii, Kazumi*; Iwanami, Masaru*; et al.
no journal, ,
no abstracts in English
Kaneko, Tetsuji*; Tanaka, Norihiko*; Kawaharada, Yoshiyuki*; Fujii, Kazumi*; Iwanami, Masaru*; Ishioka, Shinichi*; Yokoyama, Yutaka*; Umehara, Ryuji*; Kato, Chiaki; Ueno, Fumiyoshi; et al.
no journal, ,
no abstracts in English
Fujii, Kazumi*; Iwanami, Masaru*; Ishioka, Shinichi*; Kaneko, Tetsuji*; Tanaka, Norihiko*; Kawaharada, Yoshiyuki*; Yokoyama, Yutaka*; Umehara, Ryuji*; Kato, Chiaki; Ueno, Fumiyoshi; et al.
no journal, ,
no abstracts in English
-ray irradiationKato, Chiaki; Sato, Tomonori; Ueno, Fumiyoshi; Kaneko, Tetsuji*; Tanaka, Norihiko*; Kawaharada, Yoshiyuki*; Fujii, Kazumi*; Iwanami, Masaru*; Ishioka, Shinichi*; Yokoyama, Yutaka*; et al.
no journal, ,
no abstracts in English
Yokoyama, Yutaka*; Umehara, Ryuji*; Kaneko, Tetsuji*; Tanaka, Norihiko*; Kawaharada, Yoshiyuki*; Fujii, Kazumi*; Iwanami, Masaru*; Ishioka, Shinichi*; Kato, Chiaki; Ueno, Fumiyoshi; et al.
no journal, ,
no abstracts in English
-ray irradiationSato, Tomonori; Kato, Chiaki; Ueno, Fumiyoshi; Osaka, Masahiko
no journal, ,
To evaluate the availability of the corrosion inhibitor under irradiation condition, the corrosion test of (CS) exposed to the diluted seawater containing corrosion inhibitor under -rays irradiation condition was performed. The sodium tungstate (Na
WO
), Mixed phosphate corrosion inhibitor (MPCI) and Molybdate-containing Mixed Phosphate-based Inhibitors (MMPI) were injected into the diluted seawater as corrosion inhibitors. The corrosion potentials (CPs) of CS under -ray irradiation were also performed. The corrosion was successfully mitigated in more than 5000 ppm of NaWO containing conditions. For MPCI and MMPI, the corrosions were successfully mitigated in all of the test cases. The CP of CS sifted to a much higher potential in the NaWO containing condition. It indicated that the passive film was formed at the surface in -ray irradiation conditions same as the non-irradiation condition. The CP of CS in the MPCI containing condition was almost same as that without inhibitors. It indicated that not only cathodic reaction but also anodic reaction was mitigated by the MPCI. The CP of CS in the MMPI containing condition was larger than that without inhibitors. It indicated that the formation of passive film by the molybdate is dominant for the mitigation of the corrosion by MMPI.
Otani, Kyohei; Ueno, Fumiyoshi; Kato, Chiaki
no journal, ,
In order to develop a novel corrosion inhibitor that is suitable for the 1F environment, it was focused on aluminum lactate, which had not been focused on as a corrosion inhibitor. It was found that aluminum lactate had a synergistic effect and high corrosion inhibition ability when mixed with sodium molybdate. As a result of surface XPS analysis, it was found that the corrosion of carbon steel was inhibited by the formation of aluminum and molybdenum oxide films on the carbon steel surface.
大谷 恭平; 加藤 千明
not registered
JP, 2021-043875 
Patent licensing information Patent publication (In Japanese)
【課題】本発明は、添加コストや排水の水処理コストが低い防食剤および防食方法を提供することを課題とする。 【解決手段】本発明は、(A)乳酸アルミニウム、および(B)無機酸塩および有機酸塩から選ばれる1種または2種類以上を含有する、水系における金属部材の防食剤、および同防食剤を用いた水系における金属部材の防食方法を提供する。