Synthesis and dynamic nano structure change in metallic glasses with stable inhomogeneous local structure

• Project/Area Number: 19360309
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Structural/Functional materials
• Research Institution: Tohoku University
• Principal Investigator: SAIDA Junji Tohoku University, 学際科学国際高等研究センター, 准教授 (20359540)
• Co-Investigator(Kenkyū-buntansha): KATO Hidemi 東北大学, 金属材料研究所, 准教授 (80323096)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥20,280,000 (Direct Cost: ¥15,600,000、Indirect Cost: ¥4,680,000); Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2008: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2007: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
• Keywords: 金属ガラス / 微細構造 / 核生成 / 機械的性質 / 相変態 / バルク金属ガラス / ガラス形成能 / 局所構造 / 塑性変形能 / 動的構造変化 / 微細構造変化 / 構造緩和 / 核生成制御 / 塑性変形 / 不均質構造

Research Abstract

We observed that the nucleation mode in supercooled liquid can be controlled by changing atmosphere in the Cu mold casting technique. Zr-based bulk metallic glasses containing Pd or Nb exhibit a good plasticity. It is due to the deformation-induced dynamic nanostructure change. We also investigated that the synergy effect of dynamic nanostructure change and glassy structure control is very important on the improvement of mechanical properties such as plasticity in metallic glasses.

Research Products

• [Journal Article] Effect of Nb on the transformation kinetics and mechanical properties in Zr-Al-Ni-Cu metallic glasses (2010)
  • Author(s): J. Saida, A. D. Setyawan, M. Matsushita, A. Inoue
  • Journal Title: Mater.Trans. (印刷中)
  • NAID: 10027018512
  • Peer Reviewed
• [Journal Article] Deformation-induced structural transformation leading to ductility in Zr_<65>Al_<7.5>Ni_<10>Cu_<12.5>M_5 (M=Nb, Pd) glassy alloys (2010)
  • Author(s): A. D. Setyawan, J. Saida, H. Kato, M. Matsushita, A. Inoue
  • Journal Title: J.Mater.Res. (印刷中)
  • Peer Reviewed
• [Journal Article] Nanostructure controlling in Zr-based metallic glasses using icosahedral local structure (2009)
  • Author(s): J. Saida, H. Kato, A. D. Setyawan, K. Yoshimi, A. Inoue
  • Journal Title: J.Alloys Compd. 483巻 Pages: 231-234
  • Peer Reviewed
• [Journal Article] Evaluation of the local environment for nanoscale quasicrystal formation in Zr_<80>Pt_<20> glassy alloy using Voronoi analysis (2009)
  • Author(s): J. Saida, K. Itoh, S. Sato, M. Imafuku, T. Sanada, A. Inoue
  • Journal Title: J.Phys.Condens.Matter 21巻 Pages: 3751041-6
  • Peer Reviewed
• [Journal Article] Tailoring thermally induced nano-quasicrystallization and deformation assisted nanocrystallization for mechanical property improvement in Zr-Al-Ni-Cu-Pd bulk metallic glass (2009)
  • Author(s): J. Saida, A. D. Setyawan, H. Kato, M. Matsushita, A. Inoue
  • Journal Title: Mater.Trans. 50巻 Pages: 2079-2086
  • NAID: 10025155221
  • Peer Reviewed
• [Journal Article] Evaluation of residual stress and deformation behavior on Zr_<55>Al_<10>Ni_5Cu_<30> bulk metallic glass containing ZrC particles using neutron diffraction (2009)
  • Author(s): H. Suzuki, J. Saida, H. Kato, A. D. Setyawan, M. Imafuku
  • Journal Title: Scripta Mater. 60巻 Pages: 725-728
  • Peer Reviewed
• [Journal Article] Tailoring thermally induced nano-quasicrystallization and deformation-assisted nanocrystallization for mechanical property improvement in Zr-Al-Ni-Cu-Pd bulk metallic glasses (2009)
  • Author(s): J.Saida, et al.
  • Journal Title: Materials Transactions 50 Pages: 2079-2086
  • NAID: 10025155221
  • Peer Reviewed
• [Journal Article] Nanostructure controlling in Zr-based metallic glasses using icosahedral local structure (2009)
  • Author(s): J.Saida, et al.
  • Journal Title: Journal of Alloys and Compounds 483 Pages: 231-234
  • Peer Reviewed
• [Journal Article] Evaluation of the local environment for nanoscale quasicrystal formation in Zr_<80>Pt_<20> glassy alloy using Voronoi analysis (2009)
  • Author(s): J.Saida, et al.
  • Journal Title: Journal of Physics : Condensed Matter 21 Pages: 3751041-6
  • Peer Reviewed
• [Journal Article] Free-volume-induced enhancement of plasticity in a monolithic bulk metallic glass at room temperature (2008)
  • Author(s): L. Y. Chen, A. D. Setyawan, H. Kato, A. Inoue, G. Q. Zhang, J. Saida, X. D. Wang, Q. P. Cao, J. Z. Jiang
  • Journal Title: Scripta Mater. 59巻 Pages: 75-78
  • Peer Reviewed
• [Journal Article] Glass formation dependence on casting-atmosphere pressure in Zr_<65>Al_<7.5>Ni_<10>Cu_<17.5-x>Pd_x (x=0-17.5) alloy system : A resultant effect of quasicrystalline phase transformation and cooling mechanism during mold-casting process (2008)
  • Author(s): A. D. Setyawan, H. Kato, J. Saida, A. Inoue
  • Journal Title: J.Appl.Phys. 103巻 Pages: 0449071-8
  • Peer Reviewed
• [Journal Article] Improvement of plasticity in Pd containing Zr-Al-Ni-Cu bulk metallic glass by deformation-induced nano structure change (2008)
  • Author(s): J. Saida, et.al.
  • Journal Title: Materials Transactions 49 Pages: 2732-2736
  • NAID: 10024403701
  • Peer Reviewed
• [Journal Article] Phase transformation behavior in continuously cooled Zr_<65>Al_<7.5>Ni_<10> Cu_<17.5-x>Pd_x (x=0-17.5) glass-forming alloys and the consequence in structure and property control (2008)
  • Author(s): A. D. Setyawan, et.al.
  • Journal Title: Philosophical Magazine 88 Pages: 1125-1136
  • Peer Reviewed
• [Journal Article] Nano quasicrystal formation and local atomic structure in Zr-Pd and Zr-Pt binary metallic glasses (2008)
  • Author(s): J. Saida, et.al.
  • Journal Title: Zeitschrift fur Kristallographie 223 Pages: 726-730
  • Peer Reviewed
• [Journal Article] Local structure characterization in quasicrystal-forming Zr80Pt20 binary amorphous alloy (2007)
  • Author(s): J. Saida, et. al.
  • Journal Title: Applied Physics Letters 91
  • NAID: 120002338384
  • Peer Reviewed
• [Journal Article] Origin of different dependence of apparent glass-forming ability on casting-atmosphere-pressure in Zr-Al-Ni-Cu-Pd alloy system (2007)
  • Author(s): A. D. Setyawan, et. al.
  • Journal Title: Materials Science Forum 561-565 Pages: 1311-1314
  • Peer Reviewed
• [Journal Article] Glass formation dependence on casting-atmosphere pressure in Zr65A17. 5Ni10Cu17.5-xPdx(x=0-17.5)alloy system: A resultant effect of quasicry stalline phase transformation and cooling mechanism during mold-casting process (2007)
  • Author(s): A. D. Setyawan, et. al.
  • Journal Title: Journal of Applied Physics 103
  • Peer Reviewed
• [Presentation] Cooling process and cast structure of Zr-Al-Ni-Cu-Based BMGs produced in various atmospheres (2010)
  • Author(s): J. Saida A. D. Setyawan, H. Kato, M. Matsushita, A. Inoue
  • Organizer: 139^<th> TMS Annual Meeting
  • Place of Presentation: Seattle, USA
• [Presentation] Cooling process and cast structure of Zr-Al-Ni-Cu-Based BMGs produced in various atmospheres (2010)
  • Author(s): J.Saida
  • Organizer: 139^<th> TMS Annual Meeting
  • Place of Presentation: シアトル,アメリカ合衆国
• [Presentation] Mechanical properties of dynamic nanostructure controlled Zr-Al-Ni-Cu-based bulk metallic glasses (2009)
  • Author(s): J. Saida, A. D. Setyawan, H. Kato, A. Inoue
  • Organizer: International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2009
  • Place of Presentation: Berlin, Germany
• [Presentation] Plastic deformation via in-situ nanostructure change in Zr-Al-Ni-Cu-based BMGs (2009)
  • Author(s): J. Saida
  • Organizer: 16^<th> International Symposium on Metastable, Amorphous and Nanostructured Materials
  • Place of Presentation: Beijing, China
• [Presentation] Mechanical properties of dynamic nanostructure controlled Zr-Al-Ni-Cu-based bulk metallic glasses (2009)
  • Author(s): J.Saida
  • Organizer: International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2009
  • Place of Presentation: ベルリン,ドイツ
• [Presentation] Plasticity and microstructure of nanostructure controlled Zr-Al-Ni-Cu-Pd BMGs (2008)
  • Author(s): J. Saida, et.al.
  • Organizer: 第13回急冷凝固材料に関する国際会議
  • Place of Presentation: ドレニスデン工科大学, ドイツ
  • Year and Date: 2008-08-26
• [Presentation] Effect of Pd content on the mechanical properties of Zr65A17.5Ni10Cu17.5-xPdx(x=0-17.5)glassy alloys (2008)
  • Author(s): A. D. Setyawan, et. al.
  • Organizer: 日本金属学会2008年春期大会
  • Place of Presentation: 武蔵工業大学
  • Year and Date: 2008-03-27
• [Book] 金属ガラスの基礎と産業への応用 (2009)
  • Author(s): 才田淳治
  • Publisher: テクノシステム
• [Book] バルク金属ガラスの材料科学と工学 (2008)
  • Author(s): 才田淳治
  • Publisher: シーエムシー出版
• [Book] バルク金属ガラスの材料科学と工学 (2008)
  • Author(s): 才田淳治, 他
  • Publisher: シーエムシー出版
• [Remarks] ホームページ等
  • URL: http://www.cir.tohoku.ac.jp/j/2research/prof.htm#saida
• [Remarks]
  • URL: http://www.cir.tohoku.ac.jp/j/2research/prof.htm