Prediction of nonmetallic inclusion formation in Fe-40mass%Ni-5mass%Cr alloy production process

Naoya Satoh, Toru Taniguchi, Setsuo Mishima, Oka Teruyasu, Takahiro Miki, Mitsutaka Hino

研究成果: Article査読

30 被引用数 (Scopus)

抄録

Thermodynamic consideration is an effective procedure for calculation of inclusion composition prediction. In general, Henrian standard state is used, and the activity coefficients of the constituents are represented by Wagner's formalism in thermodynamic calculations. This formalism is commonly used in low alloy steel, and this is not recommended for high alloy steel. High alloy steel is detailed thermodynamically using the Raoultian standard state, and the activity coefficients of the constituents are converted by Miki and Hino's formalism in this study. The equilibrium relation between Al2O 3, MgO, spinel (MgO-Al2O3) and dissolved Al, Mg and O in Fe-40mass%Ni-5mass%Cr alloy (Spacer Frame for fluorescent display) were discussed. Plant data of Fe-40mass%Ni-5mass%Cr alloy were compared thermodynamically with the calculated results. It was found that Wagner's formalism can't be useful for inclusion composition prediction of Fe-40mass%Ni-5mass%Cr alloy, Miki and Hino's formalism should be utilized for high alloy steel.

本文言語English
ページ(範囲)827-836
ページ数10
ジャーナルTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
95
12
DOI
出版ステータスPublished - 2009
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 物理化学および理論化学
  • 金属および合金
  • 材料化学

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