Development and investigation of ultra-high strength inexpensive Ti-based metastable alloys with good ductility

• Project/Area Number: 19560694
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Tohoku University
• Principal Investigator: LOUZGUINE Dmitri Tohoku University, 原子分子材料科学高等研究機構, 教授 (60302212)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2008: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2007: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: チタン / 電子顕微鏡 / 微細構造 / 延性 / 強度 / X線回折 / 透過電子顕微鏡 / 走査電子顕微鏡

Research Abstract

アーク溶解法で作製できる高強度・高延性Ti-Fe基合金を開発した。Ti_(66)Fe_(22)Cu_(12)合金は圧縮下で2GPa超の高強度と5%以上の高延性を有し、この合金にNd、Snを添加すると、延性がさらに増大した。本合金は一般的なTi合金やTi3Al金属間化合物よりも高強度で、Ti基金属ガラスに匹敵する強度を有しつつ、延性も有している。また、Ti_(94)Fe_3Cu_3合金では1050MPaの最大引張強度と3%の引張延性が得られた。本研究で開発された一連のTi-Fe基合金は構造材料への応用が期待される。

Research Products

• [Journal Article] Effect of B addition to hypereutectic Ti-based alloys (2009)
  • Author(s): L. V. Louzguina-Luzgina, D. V. Louzguine- Luzgin, A. Inoue
  • Journal Title: Journal of Alloys and Compounds 474 Pages: 131-133
  • Peer Reviewed
• [Journal Article] Structure and properties of high strength and ductile Ti-Fe-Cu-Nd-Sn alloys (2009)
  • Author(s): D. V. Louzguine-Luzgin, L. V. Louzguina- Luzgina, T. Saito, G. Xie, A. Inoue
  • Journal Title: Materials Science and Engineering : A 497 Pages: 126-131
  • Peer Reviewed
• [Journal Article] Effect of B addition to hypereutectic Ti-based alloys (2009)
  • Author(s): L. V. Louzguina-Luzgina, D. V. Louzguine-Luzgin, A. Inoue
  • Journal Title: Journal of Alloys and Compounds 474 Pages: 131-133
  • Peer Reviewed
• [Journal Article] Deformation-induced transformations in Ti_<60>Fe_<20>Co_<20> alloy (2008)
  • Author(s): D. V. Louzguine-Luzgin, L. V. Louzguina- Luzgina, V. I. Polkin and A. Inoue
  • Journal Title: Scripta Materialia 57 Pages: 445-448
  • Peer Reviewed
• [Journal Article] Structure and properties of high strength and ductile Ti-Fe-Cu-Nd-Sn alloys (2008)
  • Author(s): D. V. Louzguine-Luzgin, L. V. Louzguina-Luzgina, T. Saito, G. Xie, A. Inoue
  • Journal Title: Materials Science and Engineering : A 497 Pages: 126-131
  • Peer Reviewed
• [Journal Article] Structure and deformation behavior of high strength hypereutectic Ti-based alloys (2007)
  • Author(s): D. V. Louzguine-Luzgin, L. V. Louzguina- Luzgina, H. Kato and A. Inoue
  • Journal Title: Proceedings of the 11th World Conference on Titanium Pages: 733-736
  • Peer Reviewed
• [Journal Article] Investigation of high strength metastable hypereutectic ternary Ti-Fe-Co and quaternary Ti-Fe-Co-(V, Sn) alloys (2007)
  • Author(s): D. V. Louzguine-Luzgin, L. V. Louzguina- Luzgina, H. Kato, A. Inoue
  • Journal Title: Journal of Alloys and Compounds
  • Peer Reviewed
• [Journal Article] Structure and deformation behavior of high strength hypereutectic Ti-based alloys (2007)
  • Author(s): D. V. Louzguine-Luzgin, L. V. Louzguina-Luzgina, H. Kato and A. Inoue
  • Journal Title: Proceedings of the 11th World Conference on Titanium Pages: 733-736
  • Peer Reviewed
• [Journal Article] Deformation-induced transformations in Ti_<60>Fe_<20>Co_<20> alloy (2007)
  • Author(s): D. V. Louzguine-Luzgin, L. V. Louzguina-Luzgina, V. I. Polkin and A. Inoue
  • Journal Title: Scripta Materialia 57 Pages: 445-448
  • Peer Reviewed
• [Journal Article] Investigation of high strength metastable hypereutectic ternary Ti-Fe-Co and quaternary Ti-Fe-Co- (V, Sn) alloys (2007)
  • Author(s): D. V. Louzguine-Luzgin, L. V. Louzguina-Luzgina, H. Kato, A. Inoue
  • Journal Title: Journal of Alloys and Compounds 434-435 Pages: 32-35
  • Peer Reviewed
• [Presentation] Investigation of Structure and Properties of High Strength and Ductile Ti-Fe-Cu, Ti-Fe-Cu-Nd, Ti-Fe-Cu-Sn and Ti-Fe-Cu-Nd-Sn Alloys (2009)
  • Author(s): D. V. Louzguine
  • Organizer: JIM Spring Annual Meeting 2009年春期(第144回)
  • Place of Presentation: 東京
• [Presentation] Formation, Structure and Deformation Behavior of High Strength Ti-Based Alloys with Fe (2009)
  • Author(s): D. V. Louzguine
  • Organizer: TMS 2009 Conference
  • Place of Presentation: San Francisco, California, USA
• [Presentation] Formation, Structure and Deformation Behavior of High Strength Ti-Based Alloys with Fe (2009)
  • Author(s): D. V. Louzguine
  • Organizer: TMS 2009 Conference, Poster
  • Place of Presentation: San Francisco, Cali fornia, USA
• [Presentation] Investigation of Structure and Properties of High Strength and Ductile Ti-Fe-Cu, Ti-Fe-Cu-Nd, Ti-Fe-Cu-Sn and Ti-Fe-Cu-Nd-Sn Alloys (2009)
  • Author(s): D. V. Louzguine
  • Organizer: JIM Spring Annual Meeting 2009年春期(第144回), Oral
  • Place of Presentation: 東京
• [Presentation] Structure and deformation behavior of high strength hypereutectic Ti-based alloys (2007)
  • Author(s): D. V. Louzguine
  • Organizer: 11th World Conference on Titanium
  • Place of Presentation: 京都府京都市国立京都国際会館
  • Year and Date: 2007-06-07
• [Presentation] Structure and deformation behavior of high strength hypereutectic Ti-based alloys (2007)
  • Author(s): D. V. Louzguine
  • Organizer: 11th World Conference on Titanium
  • Place of Presentation: 京都