Time dependence on lattice defect formation enhanced by hydrogen in high-strength steel under a constant load

Takai, Kenichi*; Doshida, Tomoki*; Suzuki, Hiroshi*; Oshima, Nagayasu*; Hirade, Tetsuya

For high-strength steel for light weight automobile or society by use of hydrogen, we need to overcome the hydrogen brittleness right away. The hydrogen brittleness for high strength steel under constant load was investigated by thermal desorption analysis and positron annihilation lifetime measurement. We found that the hydrogen brittleness fracture was caused by the defects accumulated by existence of hydrogen under constant load.

Language	:	Japanese
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Meeting title	:	日本鉄鋼協会材料の組織と特性部会「水素脆化研究の基盤構築」中間報告会
Held date	:	2011/09
Location (city)	:	吹田
Location (country)	:	日本
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Keywords	:	no keyword
Research Facility	:	第4研究棟
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Registration No. : BB20111806
JAEA Abstracts No. :
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