Characteristic behavior of La55Al25Ni20 amorphous alloy under rapid heating

Yasunori Saotome, Keiichi Roppongi, Tao Zhang, Akihisa Inoue

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

Glass transition and crystallization phenomena of LaAlNi amorphous alloy under rapid heating were studied in this paper. A cylindrical specimen of 2 mm in diameter was heated by induction heating at a rate of up to 1000 K/s. During heating, glass transition temperature Tg and crystallization temperature Tx increase with increasing heating rate. Furthermore, the temperature range of the supercooled liquid state, ΔTx, becomes wider. In addition, deformation behavior during heating was studied under compressive loads. The material exhibits a Newtonian viscous flow in Τx, and the normal viscosity of the flow decreases with increasing heating rate.

Original languageEnglish
Pages (from-to)743-746
Number of pages4
JournalMaterials Science and Engineering A
Volume304-306
Issue number1-2
DOIs
Publication statusPublished - 2001 May 31

Keywords

  • Amorphous alloy
  • Crystallization
  • Rapid heating
  • Supercooled liquid
  • Transition temperature

ASJC Scopus subject areas

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

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