Structural study of Fe-Based glassy alloys with a large supercooled liquid region

M. Imafuku, S. Sato, T. Nakamura, H. Koshiba, E. Matsubara, A. Inoue

Research output: Contribution to journalConference articlepeer-review

6 Citations (Scopus)


The thermal stability and local atomic structures of glassy Fe70M10B20 (M = Hf, Zr, Nb, W and Cr) alloys were analyzed by DSC, ordinary X-ray diffraction and AXS measurements. The random network of the trigonal prism-like structure of (Fe,M)3B with edge-sharing, was identified in all the Fe70M10B20 (M = Hf, Zr, Nb, W and Cr) alloys in spite of the wide variety of thermal stability upon heating. Several unique primary precipitated crystalline phases, such as Fe23B6 type and Fe-M phases, were observed in the alloys exhibiting a high thermal stability. These crystallization reactions require relatively long range rearrangements of the constituents and hence the thermal stability of the glassy phase increases, leading to the appearance of a large supercooled liquid region upon heating. These phenomena may be originated from the difference in the chemical affinity and the atomic size mismatch between M and Fe or B.

Original languageEnglish
Pages (from-to)L1.6.1-L1.6.10
JournalMaterials Research Society Symposium - Proceedings
Publication statusPublished - 2001
Externally publishedYes
EventSupercooled Liquid, Bulk Glassy and Nanocrystalline states of Alloys - Boston, MA, United States
Duration: 2000 Nov 272000 Nov 30

ASJC Scopus subject areas

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


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