書誌事項
- タイトル別名
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- Characterisation of Hydrogen Embrittlement Cracking at Ta/Zr Bond Interface and Hydrogen Embrittlement Mechanism of Zr Base Metal - Hydrogen Embrittlement in SUS304ULC/Ta/Zr Explosive Bonded Joint -
- Characterisation of Hydrogen Embrittlement Cracking at Ta/Zr Bond Interface and Hydrogen Embrittlement Mechanism of Zr Base Metal
- - Hydrogen Embrittlement in SUS304ULC/Ta/Zr Explosive Bonded Joint -
- －SUS304ULC/Ta/Zr爆発接合継手の水素脆化に関する研究－
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In order to clarify the behaviour and mechanism of the hydrogen embrittlement in SUS304ULC/Ta/Zr explosive bonded joint, the hydrogen embrittlement cracking at Ta/Zr bond interface was characterised. Cracks occurred in the Zr substrate along the wavy interface of the hydrogen-charged Ta/Zr joint. The cracking susceptibility increased drastically when the potential of specimen during hydrogen-charging was reduced below the redox potential of hydrogen. γ-ZrH and δ-ZrH were precipitated in the hydrogen-charged Zr and the precipitated γ-ZrH possessed a (0002)α-Zr//(11-1)γ-ZrH, [21-1-0]α-Zr//[110]γ-ZrH crystallographic relationship. An in-situ observation of the hydrogen embrittlement cracking with SEM and TEM revealed that cracks were initiated in zirconium hydrides and propagated preferentially along zirconium hydrides. These results suggested that the hydrogen embrittlement mechanism of the Zr base metal was caused by the precipitation of zirconium hydrides and the brittle fracture of them.
収録刊行物
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- 溶接学会論文集
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溶接学会論文集 28 (2), 216-221, 2010
一般社団法人 溶接学会
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詳細情報 詳細情報について
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- CRID
- 1390001204726466048
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- NII論文ID
- 10030150013
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- NII書誌ID
- AN1005067X
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- COI
- 1:CAS:528:DC%2BC3cXpsl2js70%3D
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- ISSN
- 24348252
- 02884771
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可