Solidification Microstructure and Magnetic Properties of Ag-rich Ag-Cu-La-Fe Immiscible Alloys

• NAGASE Takeshi

  Research Center for Ultra-High Voltage Electron Microscopy, Osaka University

• TERAI Tomoyuki

  Center for International Affairs, Graduate School of Engineering, Osaka University

• KAKESHITA Tomoyuki

  Fukui University of Technology

• MORITA Kenta

  Research Facility Center for Science and Technology

Bibliographic Information

Other Title

• Ag-rich Ag-Cu-La-Fe液体分離合金の凝固組織と磁気的性質
• Ag-rich Ag-Cu-La-Fe エキタイ ブンリ ゴウキン ノ ギョウコ ソシキ ト ジキテキ セイシツ

Abstract

The microstructure and magnetic properties of rapidly solidified in Ag₅₂Cu_23.2La_4.8Fe₂₀ (at.%) alloy, which was designed as the combination of Ag-rich Ag₆₅Cu₂₉La₆ alloy with high glass forming ability (GFA) and Fe, was investigated. An amorphous phase formation was observed in melt-spun ribbon of ternary Ag₆₅Cu₂₉La₆ alloy. The composite of Ag-Cu-based polycrystalline matrix and BCC-Fe globules was obtained in Ag₅₂Cu_23.2La_4.8Fe₂₀ alloy. The size of BCC-Fe globules embedded in Ag-Cu based polycrystalline matrix was the order of 50 nano-meter. The Fe addition deteriorated the GFA in Ag-rich Ag-Cu-La alloys. The combination of liquid phase separation and stabilization of thermal melt for an amorphous phase formation during rapid cooling leads to the formation of the particular solidification microstructure in Ag-rich Ag-Cu-La-Fe alloy. The melt-spun ribbon shows the typical ferromagnetic magnetic properties due to the 50 nano-meter ordered BCC-Fe globules.

Journal

• Journal of the Society of Materials Science, Japan

  Journal of the Society of Materials Science, Japan 68 (3), 205-211, 2019-03-15

  The Society of Materials Science, Japan

Keywords

• Amorphous alloy, Liquid phase separation, Solidification, Microstructure

Details

• CRID: 1390001288129234560
• NII Article ID: 130007616763
• NII Book ID: AN00096175
• DOI: 10.2472/jsms.68.205
• ISSN: 18807488
• ISSN: 05145163
• NDL BIB ID: 029584096
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I029584096
• Web Site: https://www.jstage.jst.go.jp/article/jsms/68/3/68_205/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed