预处理工艺对双辊铸轧3003铝合金再结晶行为的影响
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摘要
对双辊铸轧3003铝合金板材进行了3种预处理退火,研究不同预处理工艺下的冷轧板材在380～500℃退火时晶粒组织和再结晶织构的变化规律。结果表明:最优化预处理工艺为610℃/12h+460℃/12h,高温阶段第二相尺寸发生粗化,低温阶段基体中Mn的过饱和固溶度显著降低,两者均有利于提高后续退火时的再结晶形核率。500℃退火时,在粗大第二相的附近产生了粒子诱发形核机制,降低了再结晶织构强度;并且退火时几乎不存在析出,析出相对再结晶形核的抑制作用甚微,从而得到了晶粒细小、织构弱的再结晶组织。
Three kinds of pre-treatment process were carried out in a twin roll cast 3003 Al alloy sheet. The evolution of grain structure and recrystallization texture was investigated in the pre-treated sheet after cold-rolling and annealing at 380-500℃. The results show that the optimized pre-treatment is determined to be 610℃ for 12 h followed by 460℃ for 12 h. Second phase particle coarsening occurs at high temperature stage and the Mn concentration in solid solution decreases at low temperature stage, both of them can promote the recrystallization nucleation rate during the subsequent annealing. During annealing at 500℃, particle stimulated nucleation occurs in the vicinity of the coarse second phase, leading to a reduced texture intensity; in addition, precipitation is hardly found to occur during annealing and hence the inhibition of recrystallization nucleation is negligible, and finally the recrysta-llization structure with fine grains together with weakened texture is obtained.
Three kinds of pre-treatment process were carried out in a twin roll cast 3003 Al alloy sheet. The evolution of grain structure and recrystallization texture was investigated in the pre-treated sheet after cold-rolling and annealing at 380-500℃. The results show that the optimized pre-treatment is determined to be 610℃ for 12 h followed by 460℃ for 12 h. Second phase particle coarsening occurs at high temperature stage and the Mn concentration in solid solution decreases at low temperature stage, both of them can promote the recrystallization nucleation rate during the subsequent annealing. During annealing at 500℃, particle stimulated nucleation occurs in the vicinity of the coarse second phase, leading to a reduced texture intensity; in addition, precipitation is hardly found to occur during annealing and hence the inhibition of recrystallization nucleation is negligible, and finally the recrysta-llization structure with fine grains together with weakened texture is obtained.
引文
[1] 陈冠,唐建国,张新明,等.等温退火过程中AA3003冷轧铝合金的析出行为[J].中国有色金属学报,2013,23(4):944-949. CHEN G,TANG J G,ZHANG X M,et al.Precipitation behavior of AA3003 cold-rolled aluminum alloy during isothermal annealing [J].The Chinese Journal of Nonferrous Metals,2013,23(4):944-949.
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[10] AGHAIE-KHAFRI M.The effect of homogenization on the recrystallization of an Al-Mn-Mg alloy sheet[J].Journal of Materials Science,2005,40(5):1135-1139.
[11] BIROL Y.Homogenization of a twin-roll cast thin Al-Mn strip[J].Journal of Alloys and Compounds,2009,471(1/2):122-127.
[12] NAGAHAMA K,MIKI I.Precipitation during recrystallization in Al-Mn and Al-Cr alloys[J].Transactions of the Japan Insti-tute of Metals,1974,15(3):185-192.
[13] 陈冠.AA3003铸轧铝合金退火过程中析出与再结晶的交互作用[D].长沙:中南大学,2013. CHEN G.The interaction of precipitation and recrystallization during annealing in AA3003 cast-rolling aluminum alloy[D].Changsha:Central South University,2013.
[14] LIU W C,LI Z,MAN C S.Effect of heating rate on the micro-structure and texture of continuous cast AA 3105 alumin-um alloy [J].Materials Science and Engineering:A,2008,478(1/2):173-180.
[15] SUN N Y,PATTERSON B R,SUNI J P,et al.Effect of heating rate on recrystallization of twin roll cast aluminum[J].Metallur-gical and Materials Transactions A,2008,39(1):165-170.
[16] HUMPHREYS F J,HATHERLY M.Recrystallization and related annealing phenomena[M].2nd ed. Oxford,UK:Elsevier, 2004.
[17] 赵凤,鲁法云,郭富安.两种7050铝合金厚板的组织与性能[J].航空材料学报,2015,35(2):64-71. ZHAO F,LU F Y,GUO F A.Comparative analysis of microstru-ctures and properties of two kinds of thick plates of 7050-T7451 aluminum alloy[J].Journal of Aeronautical Materials,2015,35(2):64-71.
[18] LIU W C,MORRIS J G.Recrystallization textures of the M {113}〈110〉 and P {011} 〈455〉 orientations in a supersaturated Al-Mn alloy[J].Scripta Materialia,2007,56(3):217-220.
[19] HIGGINSON R L,AINDOW M,BATE P S.The effect of finely dispersed particles on primary recrystallization textures in Al-Mn-Si alloys[J].Materials Science and Engineering:A,1997,225(1/2):9-21.
[20] SCH?FER C,SONG J,GOTTSTEIN G.Modeling of texture evolution in the deformation zone of second-phase particles[J].Acta Materialia,2009,57(4):1026-1034.
[2] 毛大恒,赵苏琨,李建平,等.冷轧变形量对电磁超声铸轧铝板织构和性能的影响[J].材料工程,2013(6):12-17. MAO D H,ZHAO S K,LI J P,et al.Effect of cold rolling reduction on texture and properties of cast-rolled aluminum strip under electromagnetic and ultrasonic field[J].Journal of Materials Engineering,2013(6):12-17.
[3] BIROL Y.Response to annealing treatment of a twin roll cast thin AlFeMnSi strip[J].Journal of Materials Processing Technology,2009,209(1):506-510.
[4] SUN N Y,PATTERSON B R,SUNI J P,et al.Microstructural evolution in twin roll cast AA3105 during homogenization[J].Materials Science and Engineering:A,2006,416(1/2):232-239.
[5] 李智凤,潘清林,严杰,等.退火制度对钎焊用热轧复合铝板组织与性能的影响[J].材料工程,2015,43(5):13-20. LI Z F,PAN Q L,YAN J,et al.Influence of annealing on microstructure and mechanical properties for hot-rolled aluminum composite brazing sheet[J].Journal of Materials Engineering,2015,43(5):13-20.
[6] 张新明,吴文祥,唐建国,等.预析出对冷轧3003铝合金析出行为及再结晶尺寸的影响[J].中南大学学报,2008, 37(2):212-216. ZHANG X M,WU W X,TANG J G,et al.Effect of pre-precipitation on precipitation behavior and recrystallization grain size of cold rolled 3003 aluminum alloy[J].Journal of Central South University,2008,37(2):212-216.
[7] HUANG K,WANG N,LI Y J,et al.The influence of microche-mistry on the softening behavior of two cold-rolled Al-Mn-Fe-Si alloys [J].Materials Science and Engineering:A,2014,601:86-96.
[8] HUANG K,ENGLER O,LI Y J,et al.Evolution in microstru-cture and properties during non-isothermal annealing of a cold-rolled Al-Mn-Fe-Si alloy with different microchemistry states[J].Materials Science and Engineering:A,2016,628:216-229.
[9] HUANG H W, OU B L.Evolution of precipitation during diff-erent homogenization treatments in a 3003 aluminum alloy [J].Materials & Design,2009,30(7):2685-2692.
[10] AGHAIE-KHAFRI M.The effect of homogenization on the recrystallization of an Al-Mn-Mg alloy sheet[J].Journal of Materials Science,2005,40(5):1135-1139.
[11] BIROL Y.Homogenization of a twin-roll cast thin Al-Mn strip[J].Journal of Alloys and Compounds,2009,471(1/2):122-127.
[12] NAGAHAMA K,MIKI I.Precipitation during recrystallization in Al-Mn and Al-Cr alloys[J].Transactions of the Japan Insti-tute of Metals,1974,15(3):185-192.
[13] 陈冠.AA3003铸轧铝合金退火过程中析出与再结晶的交互作用[D].长沙:中南大学,2013. CHEN G.The interaction of precipitation and recrystallization during annealing in AA3003 cast-rolling aluminum alloy[D].Changsha:Central South University,2013.
[14] LIU W C,LI Z,MAN C S.Effect of heating rate on the micro-structure and texture of continuous cast AA 3105 alumin-um alloy [J].Materials Science and Engineering:A,2008,478(1/2):173-180.
[15] SUN N Y,PATTERSON B R,SUNI J P,et al.Effect of heating rate on recrystallization of twin roll cast aluminum[J].Metallur-gical and Materials Transactions A,2008,39(1):165-170.
[16] HUMPHREYS F J,HATHERLY M.Recrystallization and related annealing phenomena[M].2nd ed. Oxford,UK:Elsevier, 2004.
[17] 赵凤,鲁法云,郭富安.两种7050铝合金厚板的组织与性能[J].航空材料学报,2015,35(2):64-71. ZHAO F,LU F Y,GUO F A.Comparative analysis of microstru-ctures and properties of two kinds of thick plates of 7050-T7451 aluminum alloy[J].Journal of Aeronautical Materials,2015,35(2):64-71.
[18] LIU W C,MORRIS J G.Recrystallization textures of the M {113}〈110〉 and P {011} 〈455〉 orientations in a supersaturated Al-Mn alloy[J].Scripta Materialia,2007,56(3):217-220.
[19] HIGGINSON R L,AINDOW M,BATE P S.The effect of finely dispersed particles on primary recrystallization textures in Al-Mn-Si alloys[J].Materials Science and Engineering:A,1997,225(1/2):9-21.
[20] SCH?FER C,SONG J,GOTTSTEIN G.Modeling of texture evolution in the deformation zone of second-phase particles[J].Acta Materialia,2009,57(4):1026-1034.
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