Corrosion behavior of pure titanium in high pH solution under irradiation

Yukawa, Takuji*; Inoue, Hiroyuki*; Kojima, Takao*; Iwase, Akihiro*; Taniguchi, Naoki ; Tachikawa, Hirokazu*

The immersion tests of pure titanium were carried out in aqueous solution containing carbonate/bicarbonate with 50 mM-chloride ion under gamma irradiation. The effect of pH on general corrosion rate of titanium were studied. The experimental results showed that the concentration of hydrogen preoxide was increased with pH, and the corrosion rate increased with the hydrogen preoxide concentration. The corrosion rate in pH12 and 13 were 5 to10 times larger than those under unirradiated conditions.

Language	:	Japanese
Journal	:	Zairyo To Kankyo 2016 Koenshu (CD-ROM)
Volume	:
Number	:
Pages	:	p.359 - 362
Publication Year/Month	:	2016/05
Meeting title	:	材料と環境2016
Held date	:	2016/05
Location (city)	:	つくば
Location (country)	:	日本
Patent information	:
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DOI for research data	:
Keywords	:	使用済燃料; 直接処分; 純チタン; ガンマ線; 腐食; pH
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Article of JAEA R&D Review	:
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Registration No. : BB20153106
JAEA Abstracts No. : 47001477
Paper Submission No. : 22102

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