250℃の高圧水素ガス中でのSUS304鋼の水素脆化感受性  [in Japanese] Susceptibility of SUS304 Steel to Hydrogen Embrittlement in High-pressure Hydrogen Gas at 250°C  [in Japanese]

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Abstract

250℃の高圧水素ガス中でのSUS304鋼の水素脆化感受性を高温・高圧水素ガス中で低ひずみ速度引張試験により調査した.高圧水素ガス中において,準安定オーステナイト系ステンレス鋼であるSUS304鋼は,室温では顕著な脆化を示したが,250℃では室温のSUS316L鋼と同等の軽微な脆化しか示さなかった.水素ガスの導入温度を250℃近傍に維持できれば,圧縮水素ガスを扱う機器や配管の材料として,従来のSUS316L鋼に替えSUS304鋼の使用が可能と考えられる.

The hydrogen embrittlement susceptibility of SUS304 steel in high-pressure hydrogen (H<sub>2</sub>) gas at 250°C was studied using the slow strain rate testing (SSRT) in high-temperature and high-pressure H<sub>2</sub> gas. In high-pressure H<sub>2</sub> gas, SUS304 (UNS S30400) steel showed clear susceptibility to embrittlement at room temperature (RT), but very low one at 250°C, that was the same level with SUS316L (UNS S31603) steel at RT. This suggests SUS304 steel would be utilized as a substitute of SUS316L, which has been conventionally used for the equipment or the piping to handle high-pressure H<sub>2</sub> gas.

Journal

  • Zairyo-to-Kankyo

    Zairyo-to-Kankyo 63(10), 523-527, 2014

    Japan Society of Corrosion Engineering

Codes

  • NII Article ID (NAID)
    130005060592
  • NII NACSIS-CAT ID (NCID)
    AN10235427
  • Text Lang
    JPN
  • ISSN
    0917-0480
  • NDL Article ID
    025859516
  • NDL Call No.
    Z17-266
  • Data Source
    NDL  J-STAGE 
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