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Manufacturing of high strength magnesium alloys manufactured by rapid cooling process and their hot forging characteristics

Research Project

Project/Area Number 15K06522
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Metal making/Resorce production engineering
Research InstitutionTokyo Denki University

Principal Investigator

WATARI HISAKI  東京電機大学, 理工学部, 教授 (90210971)

Co-Investigator(Kenkyū-buntansha) 羽賀 俊雄  大阪工業大学, 工学部, 教授 (00212134)
鈴木 真由美  富山県立大学, 工学部, 教授 (20292245)
山崎 敬則  東京電機大学, 理工学部, 准教授 (80342476)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
KeywordsRapid cooling / Magneisum alloys / Twin roll casting / Hot forging / High strength materials / Weight reduction / 急冷凝固 / マグネシウム合金 / 双ロール鋳造 / 高強度マグネシウム合金 / 熱間鍛造 / 高濃度アルミミニウム含有マグネシウム合金 / 双ロールキャスティング / 連続鋳造 / 高濃度アルミニウム含有マグネシウム合金 / 鍛造 / 双ロール法
Outline of Final Research Achievements

Twin roll casting experiments to manufacture thick forging materials were conducted using high aluminum content Mg alloys. Hot forgeability of the obtained material was examined. As a result, the following research results were obtained. Three types of high aluminum content Mg alloys, such as Mg-11 mass%Al-0.8 mass% Zn, Mg -12 mass% Al-0.8 mass% Zn, Mg-13 mass% Al-0.8 mass% Zn, were selected in roll casting experiments. By using the tandem twin roll method, it is possible to manufacture a forging thick sheet material of 24 mm at maximum. From a result of EDSD analysis of the cast strips, the crystal grain size was 70 μm near the roll surface and 30 μm at the center part of the strip, Mg17Al12and Al3Mg2 was discontinuously precipitated at the crystal grain boundaries. A hot forging test using a servo press was performed and it was demonstrated that it is possible to manufacture a pin-shaped part (heat sink) with a height of 5 mm, at a 420 degrees centigrade.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (12 results)

All 2018 2017 2016 2015

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (7 results) (of which Int'l Joint Research: 6 results,  Invited: 6 results)

  • [Journal Article] Prevention of Solidification of Al-40%Sn-1%Cu in Melt Pool on the Roll Casting Using Unequal Diameter Twin Roll Caster2018

    • Author(s)
      Toshio Haga , Ryusuke Onishi, Hisaki Watari, Shinichi Nishida
    • Journal Title

      Defect and Diffusion Forum

      Volume: 382 Pages: 160-166

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Roll Casting of Al-40%Sn-1%Cu Strip2018

    • Author(s)
      Toshio Haga , Ryusuke Onishi, Hisaki Watari, Shinichi Nishida
    • Journal Title

      Defect and Diffusion Forum

      Volume: 382 Pages: 147-154

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Casting of Clad Strip of Al-SiCp, Magnesium Alloy Hard-Brittle Light Material by a Twin Roll Caster2017

    • Author(s)
      Toshio Haga, Kentaro Okamura, Hisaki Watari, Shinichi Nishida
    • Journal Title

      Materials Science Forum

      Volume: 893 Pages: 262-266

    • Related Report
      2017 Annual Research Report 2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Semisolid Strip Casting of Aluminum Alloy by a Twin Roll Caster Equipped with a Channel Scraper2017

    • Author(s)
      Toshio Haga、Shinichi Nishida、Hisaki Watari
    • Journal Title

      Key Engineering Materials

      Volume: 748 Pages: 181-186

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct Cladding from Molten Metals of Aluminum and Magnesium Alloys using a Tandem Horizontal Twin Roll Caster2015

    • Author(s)
      Hideto Harada, Shin-ichi Nishida, Mayumi Suzuki, Hisaki Watari, Toshio Haga
    • Journal Title

      Applied Mechanics and Materials

      Volume: 772 Pages: 250-256

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Hot Forging of Roll-Cast High Aluminum Content Magnesium Alloys2017

    • Author(s)
      Tomohiro Kishi, Hisaki Watari, Mayumi Suzuki, Toshio Haga
    • Organizer
      20th International ESAFORM Conference on Materials Forming
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Application of TRC High Aluminum Conten Magnesium Alloys for Hot Forging2017

    • Author(s)
      Hisaki Watari
    • Organizer
      7th International Conference on Engineering and Innovative Materials (ICEIM 2018)
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Development of hot forging process high aluminum content magnesium alloys manufactured by horizontal twin-roll casting2016

    • Author(s)
      Tomohiro Kishi, Takafumi Ishikawa, Hisaki Watari,Toshio Haga and Masahiro Tsukamoto
    • Organizer
      The 5th Conference of the Combined Australian Materials Societies (CAMS 2016)
    • Place of Presentation
      Melbourne(Australia)
    • Year and Date
      2016-12-06
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Hot forging behavior of high aluminum content magnesium alloys manufactured by horizontal twin-roll caster2016

    • Author(s)
      Tomohiro Kishi, Takafumi Ishikawa, Hisaki Watari,Toshio Haga and Masahiro
    • Organizer
      Advances in Materials & Processing Technologies Conference(AMPT2016)
    • Place of Presentation
      Kuala Lumpur(Malaysia)
    • Year and Date
      2016-11-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Characteristic of cast twin roll Mg materials manufactured with high aluminum content during hot forging2016

    • Author(s)
      Sueji Hirawatari, Tomohiro Kishi, Takafumi Ishikawa, Hisaki Watari
    • Organizer
      Advances in Materials & Processing Technologies Conference(AMPT2016)
    • Place of Presentation
      Kuala Lumpur(Malaysia)
    • Year and Date
      2016-11-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Evaluation of Friction Properties of Magnesium Alloy during Hot Forging by Ring Compression Test2016

    • Author(s)
      Sueji Hirawatari1, Hisaki Watari, Shinichi Nishida1,Yuki Sato, Mayumi Suzuki, Toshio Haga
    • Organizer
      2016 5th International Conference on Engineering and Innovative Materials( ICEIM 2016)
    • Place of Presentation
      Kuala Lumpur(Malaysia)
    • Year and Date
      2016-09-10
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Hot forging of high-Aluminum content Magnesium alloys by using a servo press2015

    • Author(s)
      Hisaki Watari
    • Organizer
      4th Int. Conf. on Materials Science & Engineering 2015
    • Place of Presentation
      Florida(U.S.A)
    • Year and Date
      2015-09-14
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2015-04-16   Modified: 2019-03-29  

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