5031 - THE EFFECT OF HYDROGEN DIFFUSION BEHAVIOR ON THE EMBRITTLEMENT OF STEEL UNDER HYDROGEN ATMOSPHERIC CONDITION

5031 - THE EFFECT OF HYDROGEN DIFFUSION BEHAVIOR ON THE EMBRITTLEMENT OF STEEL UNDER HYDROGEN ATMOSPHERIC CONDITION
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5031 - 氢气氛条件下氢扩散行为对钢脆化的影响

DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
T. Ohmi
T. Ohmi
中科院分区：
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文献类型：
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作者：
A. Yokobori;Y. Wada;T. Iwadate;K. Yamada;T. Ohmi

文献摘要

被引文献

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炼油反应器在高温加压氢气环境条件下运行时，有大量氢气从容器壁面渗出。当反应堆停止运行时，大部分氢在冷却过程中长时间滞留在壁面上，从而导致特殊的延迟断裂。本文将提出的氢在裂纹尖端扩散和集中的分析方法应用于这一现象，并阐明了这一行为的机理。
Much hydrogen penetrates from a container wall surface when a petroleum-refining reactor operates under high temperature and pressurized hydrogen environmental condition. Major part of the hydrogen remains in the wall for a long time during cooling process when the reactor is out of operation, which results in the inducement of peculiar delayed fracture. In this paper, the proposed analytical method on hydrogen diffusion and concentration around a crack tip was applied to this phenomenon and the mechanism of this behavior was clarified.