李海波,刘宏玉,陈浩

• 1:武汉科技大学理学院
• 2:冶金工业过程系统科学湖北省重点实验室

摘要(Abstract)：

为研究静态再结晶过程中析出相对组织的细化作用,选取先前研究的V-N非调质钢作为试样,在Gleeble-1500D热模拟机上进行单道次与双道次压缩实验,计算了不同等温时间下的再结晶分数,采用带有STEM附件、INCA能谱仪及GIF能量过滤器的透射电镜JEM-2100F分析了析出相。结果表明:道次等温期间奥氏体中析出相主要为尺寸在55～140 nm的(Ti,V)(C,N);相变冷却期间铁素体中析出相则为细小的长22～100 nm、宽13～39 nm的VC。静态再结晶与析出相相互竞争、共同细化组织。等温时间较短,静态再结晶起主要细化作用;析出相数量随等温时间延长而增加,使静态再结晶出现停滞平台;等温时间较长,奥氏体局部出现的溶质贫乏区促进了晶内铁素体形核,使组织细化。

关键词(KeyWords)： 钒氮钢;静态再结晶;析出相;晶内铁素体

Abstract:

Keywords:

基金项目(Foundation): 湖北省教育厅高校产学研合作资助项目(C2010021);; 冶金工业过程系统科学湖北省重点实验室开放基金(C201017)

作者(Author): 李海波,刘宏玉,陈浩

DOI: 10.13289/j.issn.1009-6264.2012.04.019

参考文献(References)：

• [1]杨才福,张永权.氮在非调质钢中的作用[J].钢铁钒钛,2000,21(3):16-22.YANG Cai-fu,ZHANG Yong-quan.Role of nitrogen in non-quenched and tempered steel[J].Iron Steel Vanadium Titanium,2000,21(3):16-22.
• [2]Serajzadeh S,Taheri A K.An investigation of the silicon role on austenite recrystallization[J].Materials Letters,2002,56(6):984-989.
• [3]Kliber J,Schindler I.Recrystallization/precipitation behaviour in microalloyed steels[J].Journal of Materials Processing Technology,1996,60:597-602.
• [4]刘宏玉,刘建华,黄刚,等.V-N对中碳SiMn非调质钢显微组织的影响[J].特殊钢,2009,30(4):58-60.LIU Hong-yu,LIU Jian-hua,HUANG Gang,et al.Effect of V-N on microstructure of a medium carbon SiMn non-quenched and tempered steel[J].Special Steel,2009,30(4):58-60.
• [5]刘宏玉,刘建华,黄刚,等.钒氮非调质钢的组织变化特征[J].钢铁钒钛,2009,30(1):16-22.LIU Hong-yu,LIU Jian-hua,HUANG Gang,et al.Variation characteristics of microstructures in non-quenched and tempered steel with vanadium and nitrogen[J].Iron Steel Vanadium Titanium,2009,30(1):16-22.
• [6]刘宏玉,刘建华,李海波,等.热变形后冷却速率对钒氮非调质钢显微组织的影响[J].机械工程材料,2009,33(8):7-9.LIU Hong-yu,LIU Jian-hua,LI Hai-bo,et al.Effect of cooling rates after hot deformation on microstructure of vanadium-nitrogen non-quenched and tempered steel[J].Materials for Mechanical Engineering,2009,33(8):7-9.
• [7]李壮,张平礼,李治华,等.热轧带钢奥氏体静态再结晶模型的研究[J].塑性工程学报,2004,11(4):30-33.LI Zhuang,ZHANG Ping-li,LI Zhi-hua,et al.The model of austenite static recrystallization in hot rolled strip[J].Journal of Plasticity Engineering,2004,11(4):30-33.
• [8]辛彬楠,刘国权,王安东.C和N含量对V微合金非调质钢的静态再结晶量的影响[J].北京科技大学学报,2008,30(3):244-248.XIN Bin-nan,LIU Guo-quan,WANG An-dong.Effect of C and N on static recrystallization in vanadium microalloyed non-quenched/tempered steels[J].Journal of University of Science and Technology Beijing,2008,30(3):244-248.
• [9]王健,肖宏.流变应力逆分析确定静态再结晶动力学模型[J].金属学报,2008,44(7):837-842.WANG Jian,XIAO Hong.Inverse analysis method to determine kinetics model for static recrystallization using flow curves[J].Acta Metallurgica Sinica,2008,44(7):837-842.
• [10]雍歧龙,阎生贡,裴和中,等.钒在钢中的物理冶金学基础数据[J].钢铁研究学报,1998,10(5):63-66.YONG Qi-long,YAN Sheng-gong,PEI He-zhong,et al.Physical metallurgical data of vanadium in steel[J].Journal of Iron and Steel Research,1998,10(5):63-66.
• [11]雍歧龙,田建国,孙新军,等.钛在钢中的物理冶金学基础数据[J].云南工业大学学报,1999,15(2):12-16.YONG Qi-long,TIAN Jian-guo,SUN Xin-jun,et al.Physical metallurgical data of titanium in steels[J].Journal of Yunnan Polytechnic University,1999,15(2):12-16.
• [12]LI Xin-cheng,ZHAO Liang-yi,WANG Xin-yu,et al.Precipitation and hetero-nucleation effect of V(C,N)in V-microalloyed steel[J].Journal of Wuhan University of Technology:Materials Science,2008,23:844-849.
• [13]许磊,刘国权,王安东.等温处理对中碳含钒微合金钢晶内铁素体形成的影响[J].材料热处理学报,2008,29(3):39-44.XU Lei,LIU Guo-quan,WANG An-dong.Influence of isothermal treatment on formation of intragranular ferrite in medium-carbon vanadium-microalloyed steel[J].Transactions of Materials and Heat Treatment,2008,29(3):39-44.
• [14]Medina S F,Gomez M,Rancel L.Grain refinement by intragranular nucleation of ferrite in a high nitrogen content vanadium microalloyed steel[J].Scripta Materialia,2008,58:1110-1113.
• [15]Medina S F,Gomez M,Chaves J I,et al.Study on ferrite intragranular nucleation in a V-microalloyed steel[J].Materials Science Forum,2005,500:371-378.
• [16]李新城,陈光,张开华.钢铁材料组织超细化技术研究[J].热加工工艺,2002,6:54-56.LI Xin-cheng,CHEN Guang,ZHANG Kai-hua.Research on iron and steel material structure ultrafining treatment technology[J].Hot Working Technology,2002,6:54-56.

文章评论(Comment)：