Excellent thermal stability and bulk glass forming ability of Fe-B-Nb-Y soft magnetic metallic glass

Sangmin Lee, Hidemi Kato, Takeshi Kubota, Kunio Yubuta, Akihiro Makino, Akihisa Inoue

研究成果: ジャーナルへの寄稿学術誌査読

52 被引用数 (Scopus)

抄録

Effects of Y addition on the glass forming ability (GFA) of a Fe-B-Nb marginal glass former, and annealing effects on glassy/supercooled liquid phases as well as soft magnetic properties in the multicomponent Fe-B-Nb-Y alloy system were investigated. The origin of highly improved GFA in the multicomponent system is discussed with related to a characteristic exothermic phase transformation, chemical short range ordering, in the supercooled liquid region due to the positive heat of mixing between Nb-Y elements. The separating tendency between Nb and Y elements is considered to suppress precipitation of metastable Fe23B6 and α-Fe crystalline phases, thus to result in highly improving GFA and distinct high thermal stability against heat treatment of the alloy system. In addition, a glassy ring was fabricated by copper mold casting and magnetic properties were investigated before/after heat treatment.

本文言語英語
ページ(範囲)506-512
ページ数7
ジャーナルMaterials Transactions
49
3
DOI
出版ステータス出版済み - 3月 2008
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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