In-situ observed dynamics of peritectic solidification and δ/γ transformation of Fe-3 to 5 At. Pct Ni alloys

Y. Arai, T. Emi, H. Fredriksson, H. Shibata

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55 Citations (Scopus)

Abstract

The characteristics of liquid → delta ferrite and delta ferrite → gamma austenite transformation in Fe-3.50 at. pct Ni alloy, and of the peritectic solidification of Fe-4.83 and 5.01 at. pct Ni alloys, have been dynamically observed in situ with a confocal scanning laser microscope (CSLM) combined with an infrared image furnace (IIF). The unique sequence, morphologies, and rates of these transformations have been determined at a temperature gradient of 4 K/mm and growth rates of 2 to 3 μm/s, in unidirectional solidification experiments. These observations have been discussed in terms of the constitutional undercooling description of solidification theory.

Original languageEnglish
Pages (from-to)3065-3074
Number of pages10
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume36
Issue number11
DOIs
Publication statusPublished - 2005 Nov

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

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