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

doi:10.1016/j.matchar.2019.110006

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 journal › Article › peer-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 language	English
Article number	110006
Journal	Materials Characterization
Volume	159
DOIs	https://doi.org/10.1016/j.matchar.2019.110006
Publication status	Published - Jan 2020

All Science Journal Classification (ASJC) codes

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

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title = "An answer to the carbon cluster in low-temperature aged ferritic low-carbon steel",

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.",

author = "Takuya Maeda and Yasuhito Kawahara and Keisuke Kinoshita and Hideaki Sawada and Jun Takahashi and Ryo Teranishi and Kenji Kaneko",

note = "Funding Information: The authors would like to thank the Japan Science and Technology Agency ( JST ) for support (JST- CREST Grant Number JPMJCR18R2 ). This work was partly supported by JSPS KAKENHI Grant Numbers JP 18K18953 . Appendix A ",

year = "2020",

month = jan,

doi = "10.1016/j.matchar.2019.110006",

language = "English",

volume = "159",

journal = "Materials Characterization",

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TY - JOUR

T1 - An answer to the carbon cluster in low-temperature aged ferritic low-carbon steel

AU - Maeda, Takuya

AU - Kawahara, Yasuhito

AU - Kinoshita, Keisuke

AU - Sawada, Hideaki

AU - Takahashi, Jun

AU - Teranishi, Ryo

AU - Kaneko, Kenji

N1 - Funding Information: The authors would like to thank the Japan Science and Technology Agency ( JST ) for support (JST- CREST Grant Number JPMJCR18R2 ). This work was partly supported by JSPS KAKENHI Grant Numbers JP 18K18953 . Appendix A

PY - 2020/1

Y1 - 2020/1

N2 - 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.

AB - 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.

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