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Development of high strength Al alloys produced by newly proposed high speed continuous casting

Research Project

Project/Area Number 22760081
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Materials/Mechanics of materials
Research InstitutionEhime University (2011-2013)
Akita Prefectural University (2010)

Principal Investigator

OKAYASU Mitsuhiro  愛媛大学, 理工学研究科, 准教授 (40433148)

Project Period (FY) 2010-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords材料設計 / プロセス / 物性・評価
Research Abstract

In this research, the high speed heated-mold continuous casting process was developed. With this casting process, high quality cast samples were produced, which exhibit excellent mechanical properties (high strength and high ductility) that are about twice as high as those for the same alloy produced by conventional gravity casting. The effects of casting speed on the mechanical properties were investigated, using the samples with different microstructural characteristics (SDAS and eutectic structures). There are linear correlations between SDAS and tensile properties. These linear correlations, however, break down, especially for UTS versus SDAS and strain versus SDAS, as the eutectic structures become more than 0.003mm in diameter, when the UTS and ductility decrease significantly. For eutectic structures larger than 0.003mm, failure is dominated by the brittle eutectic phases, for which SDAS is no longer strongly correlated with UTS and strain.

Report

(5 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (37 results)

All 2014 2013 2012 2011 2010 Other

All Journal Article (17 results) (of which Peer Reviewed: 17 results) Presentation (20 results) (of which Invited: 1 results)

  • [Journal Article] Mechanical Strength and Failure Characteristics of Cast Mg-9%Al-1%Zn Alloys Produced by a Heated-Mold Continuous Casting Process2014

    • Author(s)
      M. Okayasu, S. Takeuchi
    • Journal Title

      Materials Science and Engineering A

      Volume: Vol.600 Pages: 211-220

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Influence of microstructural characteristics on mechanical properties of ADC12 aluminum alloy2014

    • Author(s)
      M. Okayasu, K. Ota, S. Takeuchi, H. Ohfuji, T. Shiraishi
    • Journal Title

      Materials Science and Engineering A

      Volume: Vol.592 Pages: 189-200

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Corrosion and mechanical properties of cast aluminum alloys2013

    • Author(s)
      M. Okayasu, S. Takeuchi, T. Shiraishi
    • Journal Title

      International Journal of Cast Metals Research

      Volume: Vol.26 Pages: 319-329

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Mechanical properties of AC4CH alloys produced by heated mould continuous casting process2013

    • Author(s)
      M. Okayasu, S. Takeuchi, Y. Ohkura, T. Shiraishi
    • Journal Title

      International Journal of Cast Metals Research

      Volume: Vol.26, No. 3 Pages: 160-167

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Material Properties of Cast Aluminum Alloys Produced by Various Casting Processes2013

    • Author(s)
      M. Okayasu, K. Ota, S. Takeuchi, T. Shiraishi
    • Journal Title

      Materials Science Forum

      Volume: Vol.765 Pages: 241-244

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Crystallization characteristics of primary silicon particles in cast hypereutectic Al-Si alloy2013

    • Author(s)
      M. Okayasu, S. Takeuchi, T. Shiraishi
    • Journal Title

      International Journal of Cast Metals Research

      Volume: Vol.26, No.2 Pages: 105-113

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Material properties of cast aluminum alloys produced by various casting processes2013

    • Author(s)
      M. Okayasu, K. Ota, S. Takeuchi, T. Shiraishi
    • Journal Title

      Materials Science Forum

      Volume: 765 Pages: 241-244

    • DOI

      10.4028/www.scientific.net/msf.765.241

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crystallization characteristics of primary silicon particles in cast hypereutectic Al-Si alloy2013

    • Author(s)
      M. Okayasu, S. Takeuchi and T. Shiraishi
    • Journal Title

      International Journal of Cast Metals Research

      Volume: 26 Issue: 2 Pages: 105-113

    • DOI

      10.1179/1743133612y.0000000040

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fatigue properties (S-N and da/dN-DK) of cast aluminum alloys2013

    • Author(s)
      M. Okayasu, S. Takasu, A. Niikura, S. Okano and T. Shiraishi
    • Journal Title

      International Journal of Cast Metals Research

      Volume: 26 Issue: 2 Pages: 82-91

    • DOI

      10.1179/1743133612y.0000000030

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A study of the mechanical properties of an Al-Si-Cu Alloy (ADC12) produced by various casting processes2012

    • Author(s)
      M. Okayasu, Y. Ohkura, S. Takeuchi, S. Takasu, H. Ohfuji, T. Shiraishi
    • Journal Title

      Materials Science and Engineering A

      Volume: Vol.543, No.1 Pages: 185-192

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Mechanical properties of Al-Si-Cu alloys produced by the twin rolled continuous casting process2012

    • Author(s)
      M. Okayasu, R. Sato, S. Takasu, A. Niikura, T. Shiraishi
    • Journal Title

      Materials Science and Engineering A

      Volume: Vol.534, No.1 Pages: 614-623

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effects of anisotropic microstructure of continuous cast Al-Cu eutectic alloys on their fatigue and tensile properties2012

    • Author(s)
      M. Okayasu, R. Sato, S. Takasu
    • Journal Title

      International Journal of Fatigue

      Volume: Vol.42 Pages: 45-56

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Properties of Al-Si-Cu Alloys Produced by the Twin Rolled Continuous Casting Process2012

    • Author(s)
      Mitsuhiro Okayasu, Ryo Sato, Satoshi Takasu, Akio Niikura, Tetsuro Shiraishi
    • Journal Title

      Materials Science and Engineering A

      Volume: 534 Pages: 614-623

    • DOI

      10.1016/j.msea.2011.12.018

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Study of the Mechanical Properties of an Al-Si-Cu Alloy (ADC12) Produced by Various Casting Processes2012

    • Author(s)
      M.Okayasu, Y.Ohkura, S.Takeuchi, S.Takasu, H.Ohfuji, T.Shiraishi
    • Journal Title

      Materials Science and Engineering A

      Volume: 543 Pages: 158-192

    • DOI

      10.1016/j.msea.2012.02.073

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microstructure and material properties of an Al-Cu alloy provided by the Ohno continuous casting technique2010

    • Author(s)
      M. Okayasu, S. Takasu, S. Yoshie
    • Journal Title

      Journal of Materials Processing Technology

      Volume: Vol.210, No.11 Pages: 1529-1535

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Microstructure and material properties of an Al-Cu alloy provided by the Ohno continuous casting technique2010

    • Author(s)
      Mitsuhiro Okayasu, et al.
    • Journal Title

      Journal of Materials Processing Technology

      Volume: 210 Pages: 1529-1535

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mechanical properties of Al-Si_<13>-Mg_<1.4>-Cu_1 alloys produced by the Ohno continuous casting process2010

    • Author(s)
      Mitsuhiro Okayasu, et al.
    • Journal Title

      Materials Science and Engineering A

      Volume: 527 Pages: 3120-3126

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] アルミニウム合金鋳物の材料特性に及ぼす凝固速度の影響2014

    • Author(s)
      吉田祥, 岡安光博, 白石哲郎
    • Organizer
      日本機械学会中国四国支部学生会第44回学生員卒業発表講演会
    • Place of Presentation
      鳥取大学
    • Year and Date
      2014-03-06
    • Related Report
      2013 Final Research Report
  • [Presentation] アルミニウム合金鋳物の材料特性に及ぼす凝固速度の影響2014

    • Author(s)
      吉田祥, 岡安光博, 白石哲郎
    • Organizer
      日本機械学会中国四国支部学生会第44回学生員卒業発表講演会
    • Place of Presentation
      鳥取大学工学部
    • Related Report
      2013 Annual Research Report
  • [Presentation] 加熱鋳型式連続鋳造法で作製したAl-Mg 系アルミニウム合金鋳物の材料特性に関する研究2013

    • Author(s)
      竹内修平, 岡安光博, 大倉優樹, 白石哲郎
    • Organizer
      日本機械学会M&M2012材料力学カンファレンス
    • Place of Presentation
      愛媛大学
    • Year and Date
      2013-09-22
    • Related Report
      2013 Final Research Report
  • [Presentation] 様々な鋳造法で作製したAl-Si-Cu系アルミニウム合金の機械的特性に関する基礎的研究2013

    • Author(s)
      竹内修平, 岡安光博, 大倉優樹, 白石哲郎
    • Organizer
      日本金属学会2013年秋期講演大会, (第152回)
    • Place of Presentation
      金沢大学
    • Year and Date
      2013-09-17
    • Related Report
      2013 Final Research Report
  • [Presentation] Material Properties of Cast Aluminum Alloys Produced by Various Casting Processes2013

    • Author(s)
      M. Okayasu, K. Ota, S. Takeuchi, T. Shiraishi
    • Organizer
      6th International Light Metals Technology Conference 2013
    • Place of Presentation
      Old Windsor, UK, Beaumont Estale
    • Year and Date
      2013-07-24
    • Related Report
      2013 Final Research Report
  • [Presentation] 過共晶Al-Si合金の凝固プロセスに関する研究2013

    • Author(s)
      竹内修平, 岡安光博, 白石哲郎
    • Organizer
      日本材料学会四国支部第11回講演会
    • Place of Presentation
      愛媛大学
    • Year and Date
      2013-04-20
    • Related Report
      2013 Final Research Report
  • [Presentation] 様々な鋳造法で作製したAl-Si-Cu系アルミニウム合金の機械的特性に関する基礎的研究2013

    • Author(s)
      竹内修平,岡安光博, 大倉優樹, 白石哲郎
    • Organizer
      日本金属学会 2013年秋期講演大会
    • Place of Presentation
      金沢大学工学部
    • Related Report
      2013 Annual Research Report
  • [Presentation] Material properties of cast aluminum alloys produced by various casting processes2013

    • Author(s)
      M. Okayasu, K. Ota, S. Takeuchi, T. Shiraishi
    • Organizer
      6th International Light Metals Technology Conference 2013
    • Place of Presentation
      Old Windsor, UK
    • Related Report
      2013 Annual Research Report
  • [Presentation] 過共晶Al-Si合金の凝固プロセスに関する研究2013

    • Author(s)
      竹内修平,岡安光博, 白石哲郎
    • Organizer
      日本材料学会四国支部第11回講演会
    • Place of Presentation
      愛媛大学工学部
    • Related Report
      2013 Annual Research Report
  • [Presentation] Effect of crystal orientation on mechanical properties of Aluminum alloys produced by various casting processes2012

    • Author(s)
      M. Okayasu, S. Takeuchi, T. Shiraishi
    • Organizer
      Annual meeting on American Crystallographic Association
    • Place of Presentation
      Boston, USA, Boston Westin Waterfront Hotel
    • Year and Date
      2012-07-31
    • Related Report
      2013 Final Research Report
  • [Presentation] 加熱鋳型式連続鋳造法で作製されたAC4CHアルミニウム合金鋳物の材料特性に関する基礎研究2012

    • Author(s)
      竹内修平, 岡安光博, 大倉優樹, 白石哲郎
    • Organizer
      日本機械学会中国四国支部第50期総会・講演会
    • Place of Presentation
      広島大学
    • Year and Date
      2012-03-08
    • Related Report
      2013 Final Research Report
  • [Presentation] 加熱鋳型式連続鋳造法で作製されたAC4CHアルミニウム合金鋳物の材料特性に関する基礎研究2012

    • Author(s)
      竹内修平, 岡安光博, 大倉優樹, 白石哲郎
    • Organizer
      日本機械学会中国四国支部第50期総会・講演会
    • Place of Presentation
      広島大学工学部
    • Year and Date
      2012-03-08
    • Related Report
      2011 Annual Research Report
  • [Presentation] The Mechanical Properties of the Aluminum Alloys Produced by Continuous Casting Processes2011

    • Author(s)
      M. Okayasu, S. Takasu Y. Okura, T. Shiraishi
    • Organizer
      7th IUPAC International Conference on Novel Materials and their Synthesis
    • Place of Presentation
      Shanghai, China, Fudan University
    • Year and Date
      2011-10-18
    • Related Report
      2013 Final Research Report
  • [Presentation] The Mechanical Properties of the Aluminum Alloys Produced by Continuous Casting Processes2011

    • Author(s)
      M.Okayasu, S.Takasu, Y.Okura, T.Shiraishi
    • Organizer
      7^<th> IUPAC International Conference on Novel Materials and their Synthesis
    • Place of Presentation
      上海,中華人民共和国
    • Year and Date
      2011-10-18
    • Related Report
      2011 Annual Research Report
  • [Presentation] 大野式連続鋳造法で作製したアルミニウム合金鋳物の機械的性質2010

    • Author(s)
      鷹巣哲, 岡安光博, 佐藤遼, 水野衛
    • Organizer
      日本機械学会M&M2010材料力学カンファレンス
    • Place of Presentation
      長岡技術科学大学
    • Year and Date
      2010-10-10
    • Related Report
      2013 Final Research Report
  • [Presentation] 大野式連続鋳造法で作製したアルミニウム合金鋳物の機械的性質2010

    • Author(s)
      岡安光博
    • Organizer
      日本機械学会M&M2010
    • Place of Presentation
      長岡技術科学大学,新潟県
    • Year and Date
      2010-10-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] High Mechanical and Fatigue Properties of Cast Aluminum Alloys Produced by Ohno Continuous Casting Technology2010

    • Author(s)
      M. Okayasu, S. Takasu K. Sato, M. Mizuno
    • Organizer
      International Conference on Fatigue Damage of Structural Materials VIII
    • Place of Presentation
      Massachusetts, USA, Resort and Conference Center at Hyannis
    • Year and Date
      2010-09-23
    • Related Report
      2013 Final Research Report
  • [Presentation] High Mechanical and Fatigue Properties of Cast Aluminum Alloys Produced by Ohno Continuous Casting Technology2010

    • Author(s)
      Mitsuhiro Okayasu, et al.
    • Organizer
      International Conference on Fatigue Damage of Structural Materials VIII
    • Place of Presentation
      Massachusetts, USA
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] 加熱鋳型式連続鋳造法で作製したAl-Mg系アルミニウム合金鋳物の材料特性に関する研究

    • Author(s)
      竹内修平,岡安光博, 大倉優樹,白石哲郎
    • Organizer
      日本機械学会M&M2012材料力学カンファレンス
    • Place of Presentation
      愛媛大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] Annual meeting on American Crystallographic Association

    • Author(s)
      M.Okayasu, S.Takeuchi, T.Shiraishi
    • Organizer
      Effect of crystal orientation on mechanical properties of Aluminum alloys produced by various casting processes
    • Place of Presentation
      ボストン, 米国
    • Related Report
      2012 Annual Research Report
    • Invited

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Published: 2010-08-23   Modified: 2019-07-29  

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