An answer to the carbon cluster in low-temperature aged ferritic low-carbon steel

Takuya Maeda, Yasuhito Kawahara, Keisuke Kinoshita, Hideaki Sawada, Jun Takahashi, Ryo Teranishi, Kenji Kaneko

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The morphology and crystal structure of the carbon cluster in a low-temperature aged low-carbon ferritic steel were clarified by performing conventional and in-situ TEM, and atomically-resolved ADF-STEM observation. The carbon cluster grow parallel to <001> direction of the matrix, whose morphology was presumed to be either disk or plate. Lattice constant of the carbon cluster was measured by peak fitting of atomic columns observed by ADF-STEM. The result clarified that the structure of the carbon cluster was martensite-like body-centered tetragonal (bct) structure. This martensite-like bct structure suggested that the carbon cluster was supersaturated with carbon atoms occupying specific octahedral sites.

Original languageEnglish
Article number110006
JournalMaterials Characterization
Volume159
DOIs
Publication statusPublished - Jan 2020

All Science Journal Classification (ASJC) codes

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

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