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Optimization of Inertia Bonding Conditions of Mechanical Alloyed ODS Materials

Research Project

Project/Area Number 05044207
Research Category

Grant-in-Aid for Overseas Scientific Survey.

Allocation TypeSingle-year Grants
Research InstitutionOsaka University

Principal Investigator

NAKAO Yoshikuni  Osaka University, Faculty of Engineering, Professor, 工学部, 教授 (20029086)

Co-Investigator(Kenkyū-buntansha) SAIDA Kazuyoshi  Osaka University, Faculty of Engineering, Research Associate, 工学部, 助手 (30178470)
SHINOZAKI Kenji  Osaka University, Faculty of Engineering, Research Associate, 工学部, 助手 (70154218)
NISHIMOTO Kazutoshi  Osaka University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (60112017)
權 永〓  蔚山大学校, 工科大学, 教授
KWON Young-Soon  University of Ulsan, College of Engineering, Professor
Project Period (FY) 1993
Project Status Completed (Fiscal Year 1993)
Keywordsoxide dispersion strengthened alloy / friction welding / tensile strength / creep strength / Fe-base alloy / bonded joint
Research Abstract

This study was carried out to make clear the high temperature mechanical properties and the microstructures of the friction welded joint of MA956 alloy.
The friction welded joints were produced under the welding parameters, viz.the friction speed of 40/s, the friction pressure of 50MPa, the friction time of 2s, the forging time of 6s and the forging pressures of 50 and 150MPa.
The friction welded zone was classified in region I, II and III in terms of the difference of microstructures. A grain size in the region III was in the range of 2 to 12 mum. On the other hand, grain sizes in the regions I and II were in the range of 2 to 4 mum and smaller than that in the region III. These joints failed at the base metal zone when the tensile tests were performed at room temperature and at 923K. However, the creep strength at 923K of these joints were lower compared to the base metal at 923K. The crack in the creep-tested specimen occurred at the interface between region I and II and at region II. This result shows that the good joints of MA956 alloy were obtained by the friction welding concerning with the high temperature tensile strength.

Report

(1 results)
  • 1993 Final Research Report Summary
  • Research Products

    (2 results)

All Other

All Publications (2 results)

  • [Publications] 中尾嘉邦,權永〓,西本和俊,篠崎賢二,才田一幸,有年雅敏: "MA956の摩擦圧接" 溶接学会論文集(投稿予定).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1993 Final Research Report Summary
  • [Publications] Y.Nakao, Y.S.Kwon, K.Nishimoto, K.Shinozaki, K.Saida, M.Aritoshi: "Friction Welding of Fe-base ODS Alloy, MA956" Quarterly Journal of the Japan Welding Society.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1993 Final Research Report Summary

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Published: 1995-02-07   Modified: 2016-04-21  

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