Effect of carbon structure crystallinity on initial stage of iron carburization

Ko-Ichiro Ohno, Takayuki Maeda, Koki Nishioka, Masakata Shimizu

研究成果: ジャーナルへの寄稿記事

16 引用 (Scopus)

抄録

Iron carburization is one of the most important reactions in iron making process. If the rate and efficiency of carburization reaction are increased, energy consumption of the process will be reduced to a large extent. The purpose of this study is to clarify the effect of carbon structure on initial iron carburization behavior for suggestion of effective carbon utilization in iron making process. Samples of different carbon structures were prepared by heat treatment of CH4 decomposed carbon at various temperatures. Carbon structures of prepared carbon samples were analyzed by a Raman spectroscopy. For experiments, high-purity iron samples directly-contacted with carbon were prepared. A laser microscope combined with an infrared image furnace was used for heating of the sample and "in-situ" observation of carburization phenomena. Carbon concentration profile in iron sample was analyzed by a wavelength dispersion type electron probe micro analyzer. The results of this work showed that primary Fe-C liquid formation temperature became lower from 1 439 to 1 431 K with use of lower crystallization carbon. It was indicated that utilization of the lower crystallization degree of carbon structure causes formation of primary Fe-C liquid at the lower temperature.

元の言語英語
ページ(範囲)53-58
ページ数6
ジャーナルISIJ International
50
発行部数1
DOI
出版物ステータス出版済み - 3 29 2010

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Carbon
Iron
Crystallization
Liquids
Temperature
Raman spectroscopy
Furnaces
Microscopes
Energy utilization
Heat treatment
Infrared radiation
Heating
Wavelength
Electrons
Lasers

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

これを引用

Effect of carbon structure crystallinity on initial stage of iron carburization. / Ohno, Ko-Ichiro; Maeda, Takayuki; Nishioka, Koki; Shimizu, Masakata.

:: ISIJ International, 巻 50, 番号 1, 29.03.2010, p. 53-58.

研究成果: ジャーナルへの寄稿記事

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