Effect of Aluminum and Oxygen Content on Diffusivity of Alurninum in Molten Iron.
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- Kawakami Masahiro
- Toyohashi University of Technology
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- Yokoyama Seiji
- Toyohashi University of Technology
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- Takagi Kenji
- Graduate Course, Toyohashi University of Technology
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- Nishimura Motohiko
- Graduate Course, Toyohashi University of Technology
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- Kim Jeong-Sik
- Tokyo Research Laboratory
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The diffusivity of aluminum in molten iron has been obtained with the capillary reservoir method. It is given as<br><br>D (m2/s)=(1.00±0.11)×10-6 exp(-81500/RT ) 1823 to 1923 K<br><br>at lower oxygen content than 0.025 mass% and lower aluminum content than 1.4 mass%. If the oxygen content is higher, the diffusivity decreases apparently with the oxygen content. The effect of oxygen on aluminum diffusion is well interpreted by the counter current diffusion model. The effect of aluminum content is well expressed by the Darken's equation. <br><br>D =(NAlDFeS+NFeDAlS)(1+d lnN<SUB>Al</SUB>d lnγAl)<br><br>The self diffusivities of Fe and Al in the equation are obtained, respectively as<br><br>DFeS(m2/s)=9.48×10-4 exp(-145000/RT )<br>DAlS(m2/s)=1.54×10-6 exp(-96000/RT )
収録刊行物
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- ISIJ International
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ISIJ International 37 (5), 425-431, 1997
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390282681429875328
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- NII論文ID
- 10002455607
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- NII書誌ID
- AA10680712
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- ISSN
- 13475460
- 09151559
- http://id.crossref.org/issn/00211583
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可