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Developments of Bulk Plate of Amorphous Alloy Ribbons and Its Reliability Analysis

Research Project

Project/Area Number 06650122
Research Category

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

Allocation TypeSingle-year Grants
Research Field Materials/Mechanics of materials
Research InstitutionRITSUMEIKAN UNIVERSITY

Principal Investigator

SAKAI Tatsuo  Faculty of Science and Engineering, Ritsumeikan University, Professor, 理工学部, 教授 (00066739)

Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1995: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1994: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsAmorphous alloy / Composites / Temperature dependence / Tensile strength / Fatigue strength / Combined distribution / Reliability / Weibull distribution / 引張強度 / 疲労試験 / X線回折 / 多層複合
Research Abstract

Various kinds of amorphous alloys were developed and applied to the mechanical use due to the high strength as well as the electro-magnetic materials. Distribution aspect of the strength plays an important role in evaluation of the safety and reliability of the mechanical structures. In this study, distribution characteristics of tensile and fatigue properties of Fe base amorphous alloy ribbons were experimentally examined. Main conclusions obtained are summarized as follows ;
(1) Distribution aspect of tensile strength at temperatures from RT to 300deg. C is governed by a common population distribution of Wiebull type having three parameters.
(2) Crystalization begins to occur at 400deg.C and completed at 500deg.C.Tensile strength at 400deg.C has a distinct scatter due to the crystalization and the distribution characteristics are well explained by means of a concept of combined distribution.
(3) Fabrication process of multi-plied composite plate was established such that the strength of the plate was given by integration of the strength for each ply of the amorphous ribbons.
(4) It was found that the fatigue property in pulsating tension had a distinct scatter. Thus statistical procedure should be introduced to the machine design and the safety analysis.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (7 results)

All Other

All Publications (7 results)

  • [Publications] 酒井達雄、若宮正行、伊藤敬: "アモルファス金属薄帯の引張り強度の分布特性に関する一研究" JCOSSAR'95 論文集. 3. 601-604 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 酒井達雄、伊藤敬: "アモルファス金属薄帯の引張強度特性に関する統計的一研究" 日本材料学会第45期総会学術講演会前刷. (発表予定). (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] T.SAKAI,M.WAKAMIYA,T.ITO: "Study on Tensile Strength Distribution of Amorphous Alloy Ribbons" Proceedings of JCOSSAR'95. Vol.3. 601-604 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] T.SAKAI,T.ITO: "A Statistical Study on Tensile Strength of Amorphous Alloy Ribbons" Preprints of JSMS Annual Meeting. (Submitted). (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 酒井達雄、若宮正行、伊藤敬: "アモルファス金属薄帯の引張り強度の分布特性に関する一研究" JCOSSAR'95論文集. 3. 601-604 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 酒井達雄、伊藤敬: "アモルファス金属薄帯の引張強度特性に関する統計的一研究" 日本材料学会第45期総会学術講演会前刷. (発表予定). (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 酒井達雄: "アモルファス金属薄帯の引張強度分布の温度依存性に関する研究" 第13回材料・構造信頼性シンポジウム講演論文集. 62-66 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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