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Permeability of hydrogen and deuterium of Hastelloy XR

ハステロイXRの水素・重水素透過係数

武田 哲明; 岩月 仁*; 稲垣 嘉之

Takeda, Tetsuaki; Iwatsuki, Jin*; Inagaki, Yoshiyuki

高温工学試験研究炉(HTTR)に接続する水素製造システムでは中間熱交換器の伝熱管や水蒸気改質器の反応管に使用される高温耐熱合金の水素同位体透過が重要な問題となる。そこで、中間熱交換器の伝熱管に使用されているハステロイXRの水素,重水素透過係数を取得するため水素同位体透過実験を実施した。本論文ではハステロイXRの水素及び重水素透過係数の活性化エネルギーと前指数部の係数を求めた。

Permeation of hydrogen isotope through a high-temperature alloy used as heat exchanger and steam reformer pipes is an important problem in the hydrogen production system connected to be a High-Temperature Engineering Test Reactor (HTTR). An experiment of hydrogen (H$$_{2}$$) and deuterium (D$$_{2}$$) permeation was performed to obtain permeability of H$$_{2}$$ and D$$_{2}$$ of Hastelloy XR, which is adopted as heat transfer pipe of an intermediate heat exchanger of the HTTR. Permeability of H$$_{2}$$ and D$$_{2}$$ of Hastelloy XR were obtained as follows. The activation energy E$$_{0}$$ and pre-exponential factor F$$_{0}$$ of the permeability of H$$_{2}$$ was E$$_{0}$$=67.2$$pm$$1.2 kJ/mol and F$$_{0}$$=(1.0$$pm$$0.2)$$times$$10$$^{-8}$$m$$^{3}$$(STP)/m$$^{-1}$$/s$$^{-1}$$/Pa$$^{-0.5}$$, respectively, in the pipe temperature ranging from 843K-1093K.

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パーセンタイル:74.24

分野:Materials Science, Multidisciplinary

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