卷取温度对超低碳T-3CA第二相析出的影响
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摘要
为研究卷取温度对超低碳T-3CA中第二相粒子析出行为的影响,采用金相、TEM等检测手段,分析了580、630、680℃3个典型卷取温度下超低碳T-3CA中第二相粒子的析出特性,结果发现卷取温度越高,热轧形成的TiC粒子尺寸越粗大,分布越稀疏。结合相关动力学计算分析了卷取温度对TiC粒子沉淀析出时临界晶核尺寸、相对形核率、相对沉淀析出时间的影响。结果表明,随着卷取温度由580提高到680℃,TiC粒子沉淀析出时临界晶核尺寸增大约1.0nm,相对形核率降低约1.0个数量级,相对沉淀析出孕育时间增大约0.8个数量级。
In order to study the effect of coiling temperature on the precipitation behavior of the second phase particles in ultra-low carbon T-3 CA steel,the precipitation characteristic of the second phase particles in ultra-low carbon T-3 CA steel under three typical temperatures 580,630 and 680 ℃ were studied by OM and TEM.The results showed that the higher the coiling temperature,the larger the TiC particles and the sparser distribution of them would be formed during the hot-rolling process.The coiling temperature's influence on the precipitation behavior of the TiC particles was analyzed by the kinetic calculation of TiC precipitation.The calculation showed that with the coiling temperature raise from 580 to 680 ℃,the size of the crystal nucleus of TiC particle would be increased by nearly 1.0 nm,the nucleation rate of the TiC particle would be decreased by almost 1.0 order of magnitude and the incubation time of the TiC particles would be prolonged by nearly 0.8 order of magnitude.
In order to study the effect of coiling temperature on the precipitation behavior of the second phase particles in ultra-low carbon T-3 CA steel,the precipitation characteristic of the second phase particles in ultra-low carbon T-3 CA steel under three typical temperatures 580,630 and 680 ℃ were studied by OM and TEM.The results showed that the higher the coiling temperature,the larger the TiC particles and the sparser distribution of them would be formed during the hot-rolling process.The coiling temperature's influence on the precipitation behavior of the TiC particles was analyzed by the kinetic calculation of TiC precipitation.The calculation showed that with the coiling temperature raise from 580 to 680 ℃,the size of the crystal nucleus of TiC particle would be increased by nearly 1.0 nm,the nucleation rate of the TiC particle would be decreased by almost 1.0 order of magnitude and the incubation time of the TiC particles would be prolonged by nearly 0.8 order of magnitude.
引文
[1]柳长福.镀锡板在食品饮料包装材料中的竞争优势[J].钢铁研究,2007,35(4):48.(LIU Chang-fu.The competition advantage of tinplate using as packaging materials for food and drink[J].Research on Iron and Steel,2007,35(4):48.)
[2]何崇智,张志军,田德新,等.武钢微碳深冲钢板的织构特征与成型性[J].钢铁,1998,33(7):37.(HE Chong-zhi,ZHANG Zhi-jun,TIAN De-xin,et al.Texture and formability of low carbon deep drawings steel sheet[J].Iron and Steel,1998,33(7):37.)
[3]朱晓东.微量钛对低碳钢平面各向异性及织构的影响[J].钢铁研究学报,2002,14(6):57.(ZHU Xiao-dong.Effect of trace Titanium on planar anisotropy and texture of low carbon steel[J].Journal of Iron and Steel Research,2002,14(6):57.)
[4] HE Tong,LIU Yan-dong,SUN Wei,et al.Formation of Nuclei with{111}<110> and{111}<112> orientations of IF steel at early stage of recrystallization using EBSD analysis[J].Journal of Iron and Steel Research,International,2013,20(9):61.
[5] LIU Yan-dong,ZHANG Yu-dong,REN Yang,et al.In-Situ annealing study of transformation ofαandγtexture of interstitial-free steel sheet by high-energy X-Ray diffraction[J].Journal of Iron and Steel Research,International,2013,20(5):38.
[6]严春莲,崔桂彬,鞠新华,等.Ti-IF和Ti+Nb+P-IF钢连退板的析出物与织构研究[J].电子显微学报,2012(2):124.(YAN Chun-lian,CUI Gui-bin,JU Xin-hua,et al.Study on precipitates and texture in two continuous annealed Ti-IF and Ti+Nb+P-IF steels[J].Journal of Chinese Electron Microscopy Society,2012(2):124.)
[7]屈啸,彭伟,许晓嫦,等.超低碳深冲钢卷取温度实验室研究[J].北京科技大学学报,2012,34(9):1017.(QU Xiao,PENG Wei,XU Xiao-chang,et al.Laboratory studies on the coiling temperature of ultra-low carbon deep drawing steel[J].Journal of University of Science and Technology Beijing,2012,34(9):1017.)
[8]朱晓东,宓小川,俞宁峰.微Ti处理对低碳钢平面各向异性及织构的影响[J].材料热处理学报,2002,23(3):35.(ZHU Xiao-dong, MI Xiao-chuan, YU Ning-feng. Effect of microalloy Ti on the planar anisotropy and texture of low carbon steel[J].Transactions of Materials and Heat Treatment,2002,23(3):35.)
[9]胡宽辉,田德新,冯冠文,等.热镀锌连续退火工艺对高强IF钢组织和性能的影响[J].材料工程,2012(7):50.(HU Kuanhui,TIAN De-xin,FENG Guan-wen,et al.Influence of continuous annealing on microstructure and properties of highstrength IF steel[J].Journal of Materials Engineering,2012(7):50.)
[10]孙大庆,杨旭,钟莉莉,等.铁素体轧制生产超深冲冷轧板[J].钢铁,2006,41(1):47.(SUN Da-qing,YANG Xu,ZHONG Lili,et al.Super deep drawing cold rolled strip production based on hot rolling in ferrite area[J].Iron and Steel,2006,41(1):47.)
[11]雍岐龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006.(YONG Qi-long.Secondary Phase in Steel[M].Beijing:Metallurgical Industry Press,2006.)
[2]何崇智,张志军,田德新,等.武钢微碳深冲钢板的织构特征与成型性[J].钢铁,1998,33(7):37.(HE Chong-zhi,ZHANG Zhi-jun,TIAN De-xin,et al.Texture and formability of low carbon deep drawings steel sheet[J].Iron and Steel,1998,33(7):37.)
[3]朱晓东.微量钛对低碳钢平面各向异性及织构的影响[J].钢铁研究学报,2002,14(6):57.(ZHU Xiao-dong.Effect of trace Titanium on planar anisotropy and texture of low carbon steel[J].Journal of Iron and Steel Research,2002,14(6):57.)
[4] HE Tong,LIU Yan-dong,SUN Wei,et al.Formation of Nuclei with{111}<110> and{111}<112> orientations of IF steel at early stage of recrystallization using EBSD analysis[J].Journal of Iron and Steel Research,International,2013,20(9):61.
[5] LIU Yan-dong,ZHANG Yu-dong,REN Yang,et al.In-Situ annealing study of transformation ofαandγtexture of interstitial-free steel sheet by high-energy X-Ray diffraction[J].Journal of Iron and Steel Research,International,2013,20(5):38.
[6]严春莲,崔桂彬,鞠新华,等.Ti-IF和Ti+Nb+P-IF钢连退板的析出物与织构研究[J].电子显微学报,2012(2):124.(YAN Chun-lian,CUI Gui-bin,JU Xin-hua,et al.Study on precipitates and texture in two continuous annealed Ti-IF and Ti+Nb+P-IF steels[J].Journal of Chinese Electron Microscopy Society,2012(2):124.)
[7]屈啸,彭伟,许晓嫦,等.超低碳深冲钢卷取温度实验室研究[J].北京科技大学学报,2012,34(9):1017.(QU Xiao,PENG Wei,XU Xiao-chang,et al.Laboratory studies on the coiling temperature of ultra-low carbon deep drawing steel[J].Journal of University of Science and Technology Beijing,2012,34(9):1017.)
[8]朱晓东,宓小川,俞宁峰.微Ti处理对低碳钢平面各向异性及织构的影响[J].材料热处理学报,2002,23(3):35.(ZHU Xiao-dong, MI Xiao-chuan, YU Ning-feng. Effect of microalloy Ti on the planar anisotropy and texture of low carbon steel[J].Transactions of Materials and Heat Treatment,2002,23(3):35.)
[9]胡宽辉,田德新,冯冠文,等.热镀锌连续退火工艺对高强IF钢组织和性能的影响[J].材料工程,2012(7):50.(HU Kuanhui,TIAN De-xin,FENG Guan-wen,et al.Influence of continuous annealing on microstructure and properties of highstrength IF steel[J].Journal of Materials Engineering,2012(7):50.)
[10]孙大庆,杨旭,钟莉莉,等.铁素体轧制生产超深冲冷轧板[J].钢铁,2006,41(1):47.(SUN Da-qing,YANG Xu,ZHONG Lili,et al.Super deep drawing cold rolled strip production based on hot rolling in ferrite area[J].Iron and Steel,2006,41(1):47.)
[11]雍岐龙.钢铁材料中的第二相[M].北京:冶金工业出版社,2006.(YONG Qi-long.Secondary Phase in Steel[M].Beijing:Metallurgical Industry Press,2006.)