Please wait a minute...
Frontiers of Materials Science

ISSN 2095-025X

ISSN 2095-0268(Online)

CN 11-5985/TB

邮发代号 80-974

2019 Impact Factor: 1.747

Frontiers of Materials Science  2011, Vol. 5 Issue (1): 69-76   https://doi.org/10.1007/s11706-011-0116-6
  RESEARCH ARTICLE 本期目录
Laboratory study on the formation of Al2O3 inclusions at the on-set of deoxidation and during reoxidation
Laboratory study on the formation of Al2O3 inclusions at the on-set of deoxidation and during reoxidation
Marie-Aline VAN ENDE1,2, Muxing GUO1, Bart BLANPAIN1(), Patrick WOLLANTS1
1. Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, Kasteelpark Arenberg 44- bus 2450, BE-3001 Leuven, Belgium; 2. Unité d’Ingénierie des Matériaux et des Procédés, Université Catholique de Louvain, Place Sainte Barbe 2, B-1348 Louvain-la-Neuve, Belgium
 全文: PDF(348 KB)   HTML
Abstract

The formation of Al2O3 inclusions in liquid iron has been investigated in a resistance heated tube furnace to obtain deoxidation and reoxidation related data. The formation of inclusions during the early stages of deoxidation was simulated by bringing a piece of Al in contact for a short time with liquid Fe containing different dissolved oxygen levels. Reoxidation was studied by exposing Al containing Fe melts to a CO/CO2 atmosphere. Through modeling, an estimate of the local and time-dependent growth conditions for the inclusions can be made and linked to the inclusion characteristics.

Key wordssteel cleanliness    Al2O3 inclusions    deoxidation    reoxidation    morphology
收稿日期: 2010-10-14      出版日期: 2011-03-05
Corresponding Author(s): BLANPAIN Bart,Email:Bart.Blanpain@mtm.kuleuven.be   
 引用本文:   
. Laboratory study on the formation of Al2O3 inclusions at the on-set of deoxidation and during reoxidation[J]. Frontiers of Materials Science, 2011, 5(1): 69-76.
Marie-Aline VAN ENDE, Muxing GUO, Bart BLANPAIN, Patrick WOLLANTS. Laboratory study on the formation of Al2O3 inclusions at the on-set of deoxidation and during reoxidation. Front Mater Sci, 2011, 5(1): 69-76.
 链接本文:  
https://academic.hep.com.cn/foms/CN/10.1007/s11706-011-0116-6
https://academic.hep.com.cn/foms/CN/Y2011/V5/I1/69
SampleTotal oxygen content /ppmContact time /s
116030
24501
37801
418001
518005
6180060
Tab.1  
TestCAl0 /wt.%Time /minpO2 /atm
10.32304.3 × 10-10
0.28302.0 × 10-9
0.25301.7 × 10-7
20.28604.3 × 10-10
120
132
30.22602.0 × 10-9
120
180
240
Tab.2  
Fig.1  
Fig.2  
Fig.3  
Fig.4  
Fig.5  
1 Suito H, Ohta H. Characteristics of particle size distribution in early stage of deoxidation. ISIJ International , 2006, 46(1): 33-41
doi: 10.2355/isijinternational.46.33
2 Beskow K, Sichen D. Experimental study of the nucleation of alumina inclusions in liquid steel. Scandinavian Journal of Metallurgy , 2003, 32(6): 320-328
doi: 10.1111/j.1600-0692.2003.00660.x
3 Wakoh M, Sano N. Behavior of alumina inclusions just after deoxidation. ISIJ International , 2007, 47(5): 627-632
doi: 10.2355/isijinternational.47.627
4 Tiekink W, Boom R, Overbosch A, . Initial stages of alumina formation. In: Proceedings of the 7th International Conference on Clean Steel. Hungarian Mining and Metallurgical Society , 2007, 48-57
5 Steinmetz E, Lindenberg H U, Hammerschmid P, . Formation of oxides in aluminum deoxidized steel melts with re-oxidation processes. Stahl Und Eisen , 1983, 103(11): 539-545
6 Steinmetz E, Andreae C. Influence of oxygen on the formation of aluminum-oxides in iron heats. Steel Research , 1991, 62(2): 54-59
7 Wang Y, Sridhar S. Reoxidation on the surface of molten low-carbon aluminum-killed steel. Steel Research International , 2005, 76(5): 355-361
8 Van Ende M A, Guo M, Zinngrebe E, . Morphology and growth of alumina inclusions in Fe-Al alloys at low oxygen partial pressure. Ironmaking & Steelmaking , 2009, 36(3): 201-208
doi: 10.1179/174328109X401550
9 Van Ende M A, Guo M, Proost J, . Formation of inclusions at the Fe/Al interface by capillary tube tests. In: Proceedings of the 4th International Congress on the Science and Technology of Steelmaking. The Iron and Steel Institute of Japan , 2008, 445
10 Steinmetz E, Lindenberg H U. Morphology of inclusions at aluminum deoxidation. Archiv Fur Das Eisenhuttenwesen , 1976, 47(4): 199-204
11 Steinmetz E, Lindenberg H U, Morsdorf W, . Growth shapes of aluminum-oxides in steels. Archiv Fur Das Eisenhuttenwesen , 1977, 48(11): 569-574
12 Tiekink W K, Pieters A, Hekkema J. Al2O3 in steel- Morphology dependent on treatment. In: Proceedings of the 77th Steelmaking Conference/123rd AIME Annual Meeting. Iron & Steel Society of Aime , 1994, 423-427
13 Dekkers R, Blanpain B, Wollants P. Crystal growth in liquid steel during secondary metallurgy. Metallurgical and Materials Transactions B , 2003, 34(2): 161-171
doi: 10.1007/s11663-003-0003-3
14 Jung I H, Decterov S A, Pelton A D. A thermodynamic model for deoxidation equilibria in steel. Metallurgical and Materials Transactions B , 2004, 35(3): 493-507
doi: 10.1007/s11663-004-0050-4
15 Van Ende M A, Guo M, Sun Z, . Formation of Al2O3 inclusions by reoxidation of Fe-Al alloys. In: Proceedings of the Asia Steel International Conference. The Korean Institute of Metals and Materials , 2009, No. S3-12
16 Iida T, Guthrie R I L. The Physical Properties of Liquid Metals. Oxford , UK: Clarendon Press, 1993, 221
17 Kawakami M, Yokoyama S, Takagi K, . Effect of aluminum and oxygen content on diffusivity of aluminum in molten iron. ISIJ International , 1997, 37(5): 425-431
doi: 10.2355/isijinternational.37.425
18 Wasai K, Mukai K, Fuchiwaki H, . Determination of aluminum and oxygen contents in liquid iron in equilibrium with alpha-alumina and hercynite. ISIJ International , 1999, 39(8): 760-766
doi: 10.2355/isijinternational.39.760
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed