Morphological instability of δ-ferrite/γ-austenite interphase boundary in low carbon steels

H. Yin, T. Emi, H. Shibata

研究成果: Article査読

120 被引用数 (Scopus)

抄録

The dynamic behavior of the δ-ferrite/γ-austenite interphase boundary during δ/γ transformations was observed in situ with a confocal scanning laser microscope. The morphological instability and the growth of the finger pattern of the δ/γ interphase boundary were mainly focused on and studied in this work. It was found that the incoherent δ/γ interphase boundaries were always unstable with finger-like morphology during δ→γ transformation, which developed along δ-GBs at low supercoolings (<7 K) and even into the δ-matrix at higher supercoolings for the transformation. At the same time, the finger spacing was measured and analyzed by using the classical constitutional supercooling and instability theories, which show good agreement between the observations and theories.

本文言語English
ページ(範囲)1523-1535
ページ数13
ジャーナルActa Materialia
47
5
DOI
出版ステータスPublished - 1999 3月 31

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • セラミックおよび複合材料
  • ポリマーおよびプラスチック
  • 金属および合金

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