Effect of temperature on corrosion of carbon steel in bentonite under anaerobic conditions

Taniguchi, Naoki ; Suzuki, Hiroyuki; Kawasaki, Manabu; Watanabe, Masatoshi; Tateishi, Tsuyoshi*; Sazarashi, Masami

Immersion tests of carbon steel were carried out in bentonite saturated with synthetic seawater between 30-160 $^{circ}$ C. The corrosion depth was measured by weight loss of the specimens. The results showed that the initial corrosion rates increased with increasing temperature, and that the most protective corrosion product film was formed at 80-120 $^{circ}$ C. In order to evaluate the possibility of hydrogen embrittlement, the content of absorbed hydrogen (diffusive hydrogen) in specimens were analyzed. The results showed a tendency of decreasing the content of absorbed hydrogen with increasing temperature.

Language	:	Japanese
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Meeting title	:	腐食防食協会第59回材料と環境討論会
Held date	:	2012/09
Location (city)	:	旭川
Location (country)	:	日本
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Keywords	:	no keyword
Research Facility	:	ENTRY(地層処分基盤研究施設)
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Article of JAEA R&D Review	:
Cooperating Institute	:	経済産業省原子力安全・保安院

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Registration No. : BB20120881
JAEA Abstracts No. :
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