胡春林,宋波,辛文彬,毛璟红

• 1:北京科技大学钢铁冶金新技术国家重点实验室
• 2:北京科技大学冶金与生态工程学院
• 3:北京科技大学材料学与工程学院

摘要(Abstract)：

在高温钼丝炉内对实验钢采用Ti-Mg单独及复合脱氧处理,利用带有能谱仪的扫描电镜和光学显微镜研究脱氧产物的成分、大小分布及铸态微观组织的变化,分析夹杂物对晶内铁素体形核以及实验钢奥氏体晶粒大小的影响。结果表明,Ti-Mg复合脱氧后的产物可以作为TiN和MnS的析出核心,形成复合夹杂物;复合夹杂物在冷却过程中可以有效的促进晶内铁素体形核,同时抑制加热过程中奥氏体晶粒的粗化。

关键词(KeyWords)： Ti-Mg;复合脱氧;晶内铁素体;晶粒粗化

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51174019)

作者(Author): 胡春林,宋波,辛文彬,毛璟红

DOI: 10.13289/j.issn.1009-6264.2013.05.009

参考文献(References)：

• [1]Takamura J,Mizoguchi S.Roles of oxides in steel performance[C]//Proceedings of the Sixth International Iron and Steel Congress,ISIJ International,Nagoya,1990:591-597.
• [2]Babu S S,David S A.Inclusion formation and microstructure evolution in low alloy steel welds[J].ISIJ International,2002,42(12):1344-1353.
• [3]Ogibayashi S.The features of oxides in Ti-deoxidized steel[C]//Proceedings of the Sixth International Iron and Steel Congress,ISIJ International,Nagoya,1990:612-617.
• [4]Furuhara T.Multiphase crystallography in the nucleation of intragranular ferrite on MnS+V(C,N)complex precipitate in austenite[J].ISIJInternational,2003,43(12):2028-2037.
• [5]刘中柱,桑原守.氧化物冶金技术的最新进展及其实践[J].炼钢,2007,23(3):7-13.LIU Z Z,Mamoru Kuwabara.Recent progress in oxide metallurgy technology and its application[J].Steelmaking,2007,23(3):7-13.
• [6]刘中柱,桑原守.氧化物冶金技术的最新进展及其实践[J].炼钢,2007,23(4):1-6.LIU Z Z,Mamoru Kuwabara.Recent progress in oxide metallurgy technology and its application[J].Steelmaking,2007,23(4):1-6.
• [7]WU K M.Three-dimensional analysis of acicular ferrite in a low-carbon steel containing titanium[J].Scripta Materialia,2006,54(4):569-574.
• [8]Adrian H,picketing F B.Effect of Ti additions on austenite grain growth kinetics of medium carbon V-Nb steels containing 0.008～0.018%N[J].Material Science and Technology,1991,7(2):l76-182.
• [9]Guo M,Suito H.Dispersion of primary inclusions of Ce2O3 and CeS in Fe-0.20 mass%C-0.02 mass%P alloy[J].ISIJ International,1999,39(7):678-686.
• [10]Yamamoto K.Effect of boron on intragranular ferrite formation in Ti-Oxide bearing steels[J].ISIJ International,1996,36(1):80-86.
• [11]Kojma A,Hoshino M.Super high HAZ toughness technology with fine microstructure imparted by fine particles[J].Nippon Steel Technical Report,2004,380:2-5.
• [12]赵辉,胡水平,武会宾,等.Mg处理高钢级管线钢焊接热影响区晶内铁素体形核机制研究[J].钢铁,2010,45(2):82-85.ZHAO H,HU S P,WU H b,et al.Research on mechanism of nucleation of intragranular ferrite in welding heat affected zone of magnesium treatedhigh-grade pipeline steel[J].Iron and Steel,2010,45(2):82-85.
• [13]Lee T K,Kim H J,Kang B Y,et al.Effect of inclusion size on the nucleation of acicular ferrite in welds[J].ISIJ International,2000,40(12):1260-1268.

文章评论(Comment)：