書誌事項
- タイトル別名
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- Computer Simulation of Hydrogen Diffusion and Hydride Precipitation at Ta/Zr Bond Interface - Hydrogen Embrittlement in SUS304ULC/Ta/Zr Explosive Bonded Joint -
- Computer Simulation of Hydrogen Diffusion and Hydride Precipitation at Ta/Zr Bond Interface
- - 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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The concentration of hydrogen and precipitation of zirconium hydrides in Ta/Zr explosive bonded joint were analysed by computer simulation. Numerical model of hydride precipitation under hydrogen diffusion was simplified by the alternate model coupled the macroscopic hydrogen diffusion with the microscopic hydride precipitation. Effects of the initial hydrogen content in Ta, working degree of Zr and post-bond heat treatment on the hydrogen diffusion and hydride precipitation were investigated. Hydrogen was rapidly diffused from Ta substrate into Zr after explosive bonding and temporarily concentrated at Ta/Zr bond interface. Zirconium hydrides were precipitated and grew at Ta/Zr bond interface, and the precipitation zone of hydrides was enlarged with the lapse of time. The precipitation of zirconium hydrides was promoted when the initial hydrogen content in Ta and working degree of Zr were increased. The concentration of hydrogen and precipitation of hydrides at the bond interface were reduced and diminished by post-bond heat treatment at 373K. It was deduced that hydrogen embrittlement in Ta/Zr explosive bonded joint was caused by the precipitation of zirconium hydrides and concentration of hydrogen at Ta/Zr bond interface during the diffusion of hydrogen containing in Ta substrate.
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), 236-247, 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
- 1390001204726460544
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- NII論文ID
- 10030150066
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- NII書誌ID
- AN1005067X
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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
