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Hydrogen Embrittlement of Fe-based and Ni-based Amophous Alloys.

Research Project

Project/Area Number 01550557
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 金属材料(含表面処理・腐食防食)
Research InstitutionHimeji Institute of Technology

Principal Investigator

OGINO Yoshikiyo  Himeji Institute of Technology, Department of Materials Science & Engineering, Professor., 工学部, 教授 (10047574)

Co-Investigator(Kenkyū-buntansha) YAMASAKI Tohru  Himeji Institute of Technology, Department of Materials Science & Engineering, R, 工学部, 助手 (30137252)
Project Period (FY) 1989 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 1991: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1990: ¥900,000 (Direct Cost: ¥900,000)
Fiscal Year 1989: ¥1,500,000 (Direct Cost: ¥1,500,000)
Keywordsiron boron phosphrous silicon alloys / amorphous metal / hydrogen embrittlement / ductile brittle transition temperature / electrical resistivity / Mossbauer spectroscopy / 放射光小角散乱 / FeーBーPーSi合金 / 延性脆性遷移温度 / 鉄ーボロンーシリコン合金 / 鉄ーリンーシリコン合金 / メスバウァ-効果 / 鉄糸合金 / 延性-脆性遷移温度
Research Abstract

The effect of hydrogen on the ductility and the structure of Fe_<78>(B_<1-x>P_x)_<15>Si_7 amorphous alloys (x=O- 1.0) have been examined by measuring the ductile-brittle transition temperatures (DBTT), the electrical resistivities and Mossbauer effects. By cathodically charging the specimens with hydrogen, the DBTT rises with increase iii absorbed hydrogen contents. The electrical resistivity and the isomer shift of hydrogen charged specimen have indicated that the hydrogen embrittlement at temperatures below the DBTT is caused by the formation of hydride-like bonding between B, P and H. The increase in DBTT by hydrogenation is decreased by increasing P contents. This may be due to the lower dissolution temperature of P-H bonding than B-H bonding in the alloy.

Report

(4 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • 1989 Annual Research Report
  • Research Products

    (5 results)

All Other

All Publications (5 results)

  • [Publications] 山崎 徹,永澤 克司,荻野 喜清,川嶋 朝日,橋本 功二: "Fe_<78>(B_<1ーx>P_x)_<15>Si_7非晶質合金の水素吸収による脆化と構造変化" 日本金属学会誌. 55. 646-653 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Yamasaki, K. Nagasawa, Y. Ogino, A. Kawashima and K. Hashimoto: ""Embrittlement and Structural Changes by Hydrogenation of Amorphous Fe_<78>(B_<1-x>P_x)_<15>Si_7 alloys. "" J. Japan Inst. Metals. 55. 646-653 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 山崎 徹,永澤 克司,荻野 喜清,川嶋 朝日,橋本 功二: "Fe_<78>(B_<1ーx>Px)_<15>Si_7非晶質合金の水素吸収による脆化と構造変化" 日本金属学会誌. 55. 646-653 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 山崎 徹,永澤 克司,荻野 喜清,川嶋 朝日,橋本 功二: "Fe_<78>(B_<1ーx>P_x)_<15>Si_7非晶質合金の水素吸収による脆化と構造変化" 日本金属学会誌.

    • Related Report
      1990 Annual Research Report
  • [Publications] 山崎徹,荻野喜清,永沢克司,川嶋朝日,橋本功二: "Fe基非晶質合金の水素による脆化と構造変化" 日本金属学会会誌投稿予定.

    • Related Report
      1989 Annual Research Report

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Published: 1989-04-01   Modified: 2016-04-21  

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