含钛超纯铁素体不锈钢的铝脱氧及钙处理实验研究

特殊钢 ›› 2011, Vol. 32 ›› Issue (1): 48-51.

含钛超纯铁素体不锈钢的铝脱氧及钙处理实验研究

顾磊明^1,2, 陈兆平², 徐迎铁², 疏达¹

1上海交通大学金属基复合材料国家重点实验室，上海200240；
2宝山钢铁股份有限公司研究院，上海201900

收稿日期:2010-10-25 出版日期:2011-02-01 发布日期:2022-09-27
作者简介:顾磊明(1986-),女，硕士研究生，从事不锈钢冶炼研究。
基金资助:

An Experimental Study on Aluminium Deoxidation and Calcium Treatment of Ultra-Gean Ferritic Stainless Steel Containing Titanium

Gu Leiming^1,2, Chen Zhaoping², Xu Yingtie², Shu Da¹

1 State Key Lab for Metal Matrix Composites, Shanghai Jiaotong University, Shanghai 200240.
2 Research Institute, Baoshan Iron and Steel Co Ltd, Shanghai 201900

Received:2010-10-25 Published:2011-02-01 Online:2022-09-27

摘要/Abstract

摘要： 通过500kg真空感应炉对0.007%～0.015%C-15.96%～16.94%Cr-0.08%～0.36%Ti-0.015%～0.124%Al铁素体不锈钢的铝脱氧和钙处理实验,以及相应的热力学计算,对Al、Ti竞争氧化及夹杂物改性进行了研究。结果表明,当[Ti]/[Al]低于2.50时,氧化物夹杂主要为Al₂O₃,随[Ti]/[Al]的增加,钢中的主要夹杂由Al₂O₃向MgO-Al₂O₃-TiO_x及Al₂O₃-TiO_x转变,夹杂物平均尺寸逐步减小;钙处理后随[Ca]/[Al](0.01～0.08)的升高,钢中含钙复合夹杂的数量比例增加;包裹形复合夹杂的中心为氧化物,周边为TiN或Ti(CN)。

Abstract: Competitive oxidation of Al and Ti and the modification of inclusions in steel have been studied by aluminium deoxidation and calcium treatment test of 0. 007% -0. 015%C- 15.96% ~ 16. 94% Cr- 0. 08% ~0. 36%Ti- 0. 015% ~ 0.124% Al ferrite stainless steel liquid in a 500 kg vacuum induction furnace and relative thermadynamics calculation. Results show that as [Ti]/[Al] is less than 2. 50, the main oxide inclusions are A1₂O₃, with increasing [Ti]/[Al], the main inclusions in steel change to MgO-Al₂O₃ -TiO_x and A1₂O₃ -TiO_x from Al₂O₃ and the average dimension of inclusions gradually decreases； after calcium treatment with increasing [Ca]/[Al] (0. 01 -0. 08), the amount of compound inclusions containing calcium in steel increases; the compound inclusion consists of oxide core and TiN or Ti(CN) periphery.

顾磊明, 陈兆平, 徐迎铁, 疏达. 含钛超纯铁素体不锈钢的铝脱氧及钙处理实验研究[J]. 特殊钢, 2011, 32(1): 48-51.

Gu Leiming, Chen Zhaoping, Xu Yingtie, Shu Da. An Experimental Study on Aluminium Deoxidation and Calcium Treatment of Ultra-Gean Ferritic Stainless Steel Containing Titanium[J]. Special Steel, 2011, 32(1): 48-51.

参考文献

1 游香米，姜周华,李花兵，等.超纯铁素体不锈钢的开发与应用现状.中国冶金,2006,16(11) ：16
2 任贤霖，马文博.超纯铁素体不锈钢热轧生产控制方法.宝钢技术,2009(6):47
3 Ozturk Bahri, Matway R, Fruehan R J. Thermodynamics of Inclusion Formation in Fe-Cr-Ti-N Alloys. Metallurgical Materials Transactions B,1995,26(3) ：563
4 翟瑞银，郑宏光，常鶴，等.439不锈钢表面翻皮缺陷产生机理分析.第十三届全国钢质量与非金属夹杂物控制学术会议论文集.西宁：2008
5 Lo K H, Shek C H, Lai J K L. Recent Developments in Stainless Steels. Materials Science and Engineering R,2009,65：39
6 何生平，王谦,汪灿荣，等.ML08A1钢钙处理热力学探讨.中国稀土学报,2008,26(增刊)：6
7 韩志军，林平，刘浏，等.20CrMnTiHl齿轮钢钙处理热力学. 钢铁,2007,42(9) ：32
8 Holappa L, Hamalainen M, Liukkonen M, et al. Thermodynamic Examination of Inclusion Modification and Precipitation from Calcium Treatment to Solidified Steel. Ironmaking and Steelmaking, 2003,30 (2) ：111
9 顾磊明，陈兆平,徐迎铁，等.超纯铁素体不锈钢钙处理的热力学分析.第十四届全国钢质量与非金属夹杂物控制学术会议论文集.桂林：2010
10 顾磊明，陈兆平,徐迎铁，等.超纯铁素体不锈钢中夹杂物形成的热力学分析.中国稀土学报,2010,28(增刊)：16
11 Ma Zhongting, Janke D. Characteristics of Oxide Precipitation and Growth during Solidification of Deoxidized Steel. ISIJ International, 1998,38(1) ：46
12 Cha Woo-Yeol,Miki Takahiro,Sasaki Yasushi,et al. Identification of Titanium Oxide Phases Equilibrated with Liquid Fe-Ti Alloy Based on EBSD Analysis. ISU International,2006,46(7) ：987
13 杨成威，吕迺冰,王新华，等.1873K下钢液中Ti-Al复合脱氧热力学分析及夹杂物生成.北京科技大学学报,2009,31 (11) ： 1390
14 Ende Marie-Aline Van,Guo Muxing,Dekkers Rob,et al. Formation and Evolution of Al-Ti Oxide Inclusions during Secondary Steel Refining. ISIJ International ,2009,49(8) ；1133
15 Presem V, Korousie B, Hastie J W. Thermodynamic Conditions for Inclusions Modification in Calcium Treated Steel. Steel Research, 1991,62(7):289