Distribution of dislocations in nanostructured bainite

J. Cornide, G. Miyamoto, F. G. Caballero, T. Furuhara, M. K. Miller, C. Garcia-Mateo

研究成果: Conference contribution

35 被引用数 (Scopus)

抄録

The dislocation density in ferrite and austenite of a bainitic microstructure obtained by transformation at very low temperature (300 °C) has been determined using transmission electron microscopy. Observations revealed that bainitic ferrite plates consist of two distinctive regions with different substructures. A central region in the ferrite plate is observed with dislocations that may result from lattice-invariant deformation at the earlier stage of bainite growth. As plastic deformation occurs in the surrounding austenite to accommodate the transformation strain as growth progresses, the Ferrite/Austenite interface has also a very distinctive dislocation profile. In addition, atom-probe tomography suggested that dislocation tangles observed in the vicinity of the ferrite/austenite interface might trap higher amount of carbon than single dislocations inside the bainitic ferrite plate.

本文言語English
ホスト出版物のタイトルSolid-Solid Phase Transformations in Inorganic Materials
出版社Trans Tech Publications Ltd
ページ117-122
ページ数6
ISBN(印刷版)9783037851432
DOI
出版ステータスPublished - 2011

出版物シリーズ

名前Solid State Phenomena
172-174
ISSN(印刷版)1012-0394

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 材料科学(全般)
  • 凝縮系物理学

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