The Composition and Morphology Evolution of Oxide Inclusions in Ti-bearing Ultra Low-carbon Steel Melt Refined in the RH Process

被引：55
|
作者：
Wang, Min [1 ]
Bao, Yan-ping [1 ]
Cui, Heng [1 ]
Wu, Hua-jie [1 ]
Wu, Wei-shuang [1 ]
机构：
[1] Univ Sci & Technol Beijing, Engn Res Inst, Engn Res Ctr Met Technol, Beijing 100083, Peoples R China
来源：
ISIJ INTERNATIONAL | 2010年 / 50卷 / 11期
关键词：
deoxidation; inclusion; ultra low-carbon steel; morphology of Al2O3 center dot TiOx complex oxide; Al2O3; cluster; AL-TI; THERMODYNAMIC ANALYSIS; BEHAVIOR; SYSTEM; MODEL; FLOW;
D O I：
10.2355/isijinternational.50.1606
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Before deoxidation, the main inclusions were Fe-Mn-O inclusions in Ti-bearing ultra low-carbon steel melt. After 3 min Al addition, the inclusions changed to be granular and spherical Al2O3 center dot Al2O3 cluster, composed of granular and spherical particles with diameter 1-2 mu m, formed in 7 to 10 min after Al addition into the melt. Al2O3 center dot TiOx inclusions with the Ti/(Al+Ti) between 0.15 and 0.30 formed 3 min after ferro-titanium addition and Al2O3 center dot TiOx cluster formed because rich [Ti] and poor [Al] regions existed around the ferro-titanium particles and Al2O3 cluster. The Ti3O5 was hard to be formed when acid-soluble aluminum exceeded 0.035% with titanium blow 0.08%. The activity of Ti3O5 in the complex liquid phase inclusions increased remarkably with the decrease of acid-soluble aluminum and increase of titanium.
引用
收藏
页码：1606 / 1611
页数：6
相关论文
共 50 条
  • [21] Formation and Evolution of Non-metallic Inclusions in Ti-Bearing Al-Killed Steel During Secondary Refining Process
    Zhiyin Deng
    Lei Chen
    Guodong Song
    Miaoyong Zhu
    Metallurgical and Materials Transactions B, 2020, 51 : 173 - 186
  • [22] COMPREHENSIVE REFINING PROCESS BY Q-BOP-RH ROUTE FOR ULTRA LOW-CARBON STEEL
    KONDO, H
    KAMEYAMA, K
    NISHIKAWA, H
    HAMAGAMI, K
    FUJII, T
    72ND STEELMAKING CONFERENCE PROCEEDINGS, 1989, 72 : 191 - 197
  • [23] Formation and Evolution of Non-metallic Inclusions in Ti-Bearing Al-Killed Steel During Secondary Refining Process
    Deng, Zhiyin
    Chen, Lei
    Song, Guodong
    Zhu, Miaoyong
    METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2020, 51 (01): : 173 - 186
  • [24] BAKE HARDENABILITY OF COLD-ROLLED TI-BEARING EXTRA LOW-CARBON STEEL SHEETS DUE TO PRECIPITATION CONTROL
    KAWASAKI, K
    SANAGI, S
    SENUMA, T
    AKAMATSU, S
    YOSHINAGA, N
    AKISUE, O
    TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN, 1993, 79 (01): : 76 - 82
  • [25] Effect of Titanium Carbide Inclusions on Morphology of Low-Carbon Steel Martensite
    Pham, H. A.
    Ohba, T.
    Morito, S.
    Hayashi, T.
    Furuhara, T.
    Miyamoto, G.
    EUROPEAN SYMPOSIUM ON MARTENSITIC TRANSFORMATIONS, 2013, 738-739 : 25 - +
  • [26] Evolution behaviour of nonmetallic inclusions in Ti-bearing 11Cr stainless steel with calcium treatment
    Li, Jingyu
    Cheng, Guoguang
    Ruan, Qiang
    Pan, Jixiang
    Chen, Xingrun
    IRONMAKING & STEELMAKING, 2020, 47 (01) : 31 - 39
  • [27] ISOLATION AND DETERMINATION OF SULFIDES IN TI-BEARING ULTRA-LOW CARBON-STEELS
    HINOTANI, S
    ENDO, J
    TAKAYAMA, T
    MIZUI, N
    INOKUMA, Y
    ISIJ INTERNATIONAL, 1994, 34 (01) : 17 - 23
  • [28] Cleanliness of Ti-bearing Al-killed ultra-low-carbon steel during different heating processes
    Jian-long Guo
    Yan-ping Bao
    Min Wang
    InternationalJournalofMineralsMetallurgyandMaterials, 2017, 24 (12) : 1370 - 1378
  • [29] Cleanliness of Ti-bearing Al-killed ultra-low-carbon steel during different heating processes
    Guo, Jian-long
    Bao, Yan-ping
    Wang, Min
    INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS, 2017, 24 (12) : 1370 - 1378
  • [30] Cleanliness of Ti-bearing Al-killed ultra-low-carbon steel during different heating processes
    Jian-long Guo
    Yan-ping Bao
    Min Wang
    International Journal of Minerals, Metallurgy, and Materials, 2017, 24 : 1370 - 1378
12345