Characteristics and mitigation method for corrosion of equipment materials under gamma-ray irradiated condition

Yamamoto, Masahiro ; Motooka, Takafumi*; Nakano, Junichi*; Kato, Chiaki ; Sato, Tomonori

About 10 years have passed after Higashi-Nihon earthquake. Decommissioning process of Fukushima Dai-ichi NPS have been continuing day by day. However, some corrosion problems were revealed at the early stage after the accident, because sea water was used for emergency cooling of reactor vessel. In this report, research and development against those corrosion problems by JAEA researchers are introduced briefly. For example, corrosion mechanism and mitigation procedure for spent nuclear fuel pool, reactor vessel and equipment for removal of radioactive materials are summarized.

Language	:	Japanese
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Meeting title	:	材料と環境2021
Held date	:	2021/05
Location (city)	:	東京(online)
Location (country)	:	日本
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Keywords	:	腐食; 福島第一原子力発電所事故; ステンレス鋼; 低合金鋼; 炭素鋼; 線; Fukushima Daiichi Nuclear Power Station Accident
Research Facility	:	コバルト60照射施設
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Registration No. : BB20201106
JAEA Abstracts No. :
Paper Submission No. :

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