第8期 邝霜等：FeC一M血系冷轧双相钢两相区奥氏体化过程模拟 ·863, 秒，第二个阶段奥氏体向铁素体长大，这个阶段初 (苏钰，符仁钰，李麟.马氏体含量对St1201和St37一2G双相 期受C元素在奥氏体中扩散控制直至达到亚平衡， 钢力学性能的影响.上海金属，2004,26(4)：8) [7]Wen D H.The influence of microstructure on the tensile property 奥氏体长大速度较快：之后奥氏体缓慢的长大过程 of dual phase steel.Shanghai Met.2005.27(6):51 受Mn元素在铁素体中的扩散控制，该过程长达数 (温东辉。金相组织对双相钢强度影响的研究.上海金属， 千秒.第三个阶段奥氏体停止长大，Mn元素继续从 2005,27(6):51) 铁素体向奥氏体扩散使两相中的Mn浓度均化 [8]Datta D P,Gokhale A M.Austenitization kinetics of pearlite and ferrite aggregates in a low carbon steel containing 0.15 Wt Pet C. 参考文献 Metall Trans:1981,12A(3):443 [1]Bhattacharya D.Developments in advanced high strength steels// [9]Garcia C I.Deardo A J.Formation of austenite in 1.5 Pct Mn The int International Conference of HSLA Steels 2005 and steels.Metall Trans.1981.12A(3):521 ISUGS 2005 Proceedings.Sanya.2005:70 [10]Speich G R.Demarest V A.Miller R L.Formation of austenite [2]Rocha R O.Melo T M F,Pereloma E V,et al.Microstructural during intercritical annealing of dual-phase steels.Metall Trans. evolution at the initial stages of continuous annealing of cold rolled 1981,12A(8):1419 dual phase steel.Mater Sci Eng A,2005.391:296 [1]Soza MM.Guimaraes J R C.Chawla KK.Intercritical [3]Erdogan M.Effect of austenite dispersion on phase transformation austenitization of two Fe-Mn-C steels.Metall Trans,1982, in dual phase steel.Scripta Mater.2003.48(5):501 13A(4):575 [4]Erdogan M.Tekeli S.The effect of martensite volume fraction [12]Jacot A.Rappaz M.A two-dimensional diffusion model for the and particle size on the tensile properties of a surface carburized prediction of phase transformations:application to austenitization AISI 8620 steel with a dual-phase core microstructure.Mater and homogenization of hypoeutectoid FeC steels.Acta Mater. Charact,2002,49(5):445 1997,45(2):575 [5]Garcia-Junceda A.Caballero F G.Capdevila C,et al.Determina- [13]Jacot A.Rappaz M.A combined model for the description of tion of local carbon content in austenite during intercritical anneal- austenitization,homogenization and grain growth in hypoeutec- ing of dual phase steels by PEELS analysis.Scripta Mater, toid FeC steels during heating.Acta Mater.1999.47(5): 2007,57(2):89 1645 [6]Su Y,Fu R Y,Li L.Effect of the martensite content on the me- [14]Jacot A.Rappaz M.Reed R C.Modelling of reaustenitization chanical properties of dual phase steels of St1201 and St37-2G. from the pearlite structure in steel.Acta Mater,1998.46 Shanghai Met.2004,26(4):8 (11):3949秒．第二个阶段奥氏体向铁素体长大‚这个阶段初 期受 C 元素在奥氏体中扩散控制直至达到亚平衡‚ 奥氏体长大速度较快；之后奥氏体缓慢的长大过程 受 Mn 元素在铁素体中的扩散控制‚该过程长达数 千秒．第三个阶段奥氏体停止长大‚Mn 元素继续从 铁素体向奥氏体扩散使两相中的 Mn 浓度均化． 参 考 文 献 ［1］ Bhattacharya D．Developments in advanced high strength steels∥ The Joint International Conference of HSL A Steels 2005 and ISUGS 2005 Proceedings．Sanya‚2005：70 ［2］ Rocha R O‚Melo T M F‚Pereloma E V‚et al．Microstructural evolution at the initial stages of continuous annealing of cold rolled dua-l phase steel．Mater Sci Eng A‚2005‚391：296 ［3］ Erdogan M．Effect of austenite dispersion on phase transformation in dual phase steel．Scripta Mater‚2003‚48（5）：501 ［4］ Erdogan M‚Tekeli S．The effect of martensite volume fraction and particle size on the tensile properties of a surface-carburized AISI 8620 steel with a dua-l phase core microstructure． Mater Charact‚2002‚49（5）：445 ［5］ García-Junceda A‚Caballero F G‚Capdevila C‚et al．Determina￾tion of local carbon content in austenite during intercritical anneal￾ing of dual phase steels by PEELS analysis． Scripta Mater‚ 2007‚57（2）：89 ［6］ Su Y‚Fu R Y‚Li L．Effect of the martensite content on the me￾chanical properties of dual phase steels of St12Q1and St37-2G． Shanghai Met‚2004‚26（4）：8 （苏钰‚符仁钰‚李麟．马氏体含量对 St12Q1和 St37—2G 双相 钢力学性能的影响．上海金属‚2004‚26（4）：8） ［7］ Wen D H．The influence of microstructure on the tensile property of dual phase steel．Shanghai Met‚2005‚27（6）：51 （温东辉．金相组织对双相钢强度影响的研究．上海金属‚ 2005‚27（6）：51） ［8］ Datta D P‚Gokhale A M．Austenitization kinetics of pearlite and ferrite aggregates in a low carbon steel containing0∙15Wt Pct C． Metall T rans‚1981‚12A（3）：443 ［9］ Garcia C I‚Deardo A J．Formation of austenite in 1∙5Pct Mn steels．Metall T rans‚1981‚12A（3）：521 ［10］ Speich G R‚Demarest V A‚Miller R L．Formation of austenite during intercritical annealing of dua-l phase steels．Metall T rans‚ 1981‚12A（8）：1419 ［11］ Souza M M‚Guimaraes J R C‚Chawla K K．Intercritical austenitization of two Fe-Mn-C steels． Metall T rans‚1982‚ 13A（4）：575 ［12］ Jacot A‚Rappaz M．A two-dimensional diffusion model for the prediction of phase transformations：application to austenitization and homogenization of hypoeutectoid Fe-C steels．Acta Mater‚ 1997‚45（2）：575 ［13］ Jacot A‚Rappaz M．A combined model for the description of austenitization‚homogenization and grain growth in hypoeutec￾toid Fe-C steels during heating． Acta Mater‚1999‚47（5）： 1645 ［14］ Jacot A‚Rappaz M‚Reed R C．Modelling of reaustenitization from the pearlite structure in steel． Acta Mater‚1998‚46 （11）：3949 第8期 邝 霜等： Fe－C－Mn 系冷轧双相钢两相区奥氏体化过程模拟 ·863·