Stability and icosahedral transformation of supercooled liquid in metal-metal type bulk glassy alloys

Akihisa Inoue, Wei Zhnag, Dmitri V. Louzguine, Junji Saida, Eiichiro Matsubara

研究成果: Conference article査読

抄録

The glassy structure and the primary precipitation phase from supercooled liquid were examined in metal-metal type Zr-, Hf- and Cu-based alloy systems by various advanced analytical techniques. The icosahedral phase precipitates as the primary phase from supercooled liquid for all the metal-metal type glassy alloys examined in the present study. The icosahedral phase has a rhombic triacontahedra type for the Zr-Al-Ni-Cu-NM (NM=Ag, Pd, Au, Pt), Zr-Cu-NM, Hf-Al-Ni-Cu-NM, Cu-Zr-Ti-Pd and Cu-Hf-Ti alloys. In addition, the short-range atomic configurations in their glassy alloys have the features of highly dense packed atomic configuration, new local atomic configurations and long-range homogeneity with attractive interaction. It is therefore concluded that the high glass-forming ability of the metal-metal type alloys is due to the self-formation of the unique glassy structure with the above-described three features which are consistent with the formation of short-range icosahedral atomic configuration.

本文言語English
ページ(範囲)71-82
ページ数12
ジャーナルMaterials Research Society Symposium - Proceedings
806
出版ステータスPublished - 2003 12 1
イベントAmorphous and Nanocrystalline Metals - Boston, MA., United States
継続期間: 2003 12 12003 12 4

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

フィンガープリント 「Stability and icosahedral transformation of supercooled liquid in metal-metal type bulk glassy alloys」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル