TP2铜管拉拔成形过程组织演变规律
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摘要
为了研究铜管材游动芯头拉拔成形过程中组织结构及力学性能变化规律,采用OM和EBSD等试验方法对不同拉拔变形量的TP2管材进行分析。结果表明:经过拉拔变形后,晶粒沿着拉拔方向伸长形成纤维组织,管材显微硬度增加且轴向硬度值较高;经过第三道次拉拔变形量达到75%,晶粒沿轴向长度为80～100μm,宽度为8～10μm;经过拉拔变形,管材内部织构发生转变,随着变形量的提高,由原始轧制态{001}?110?、{111}?110?织构逐渐发生转动,经过三个道次后变为{110}?100?、{110}?111?织构。
In order to study the changes of microstructure and mechanical properties of copper tubes during floating plug drawing process, OM and EBSD methods were used to analyze the tube with different drawing deformations. The results show that the grains were elongated along the drawing direction and form fibrous tissue after drawing, the micro-hardness of tube increases and is higher along the transverse than that along the longitudinal; after the third pass deformation amount to 75%, the grain sizes are 80-100 μm in length and 8-10 μm in width. With the deformation increasing, the type of texture transforms from {001}?110? and {111}?110? texture, which is formed in original rolling, into {110}?100?and {110}?111? texture.
In order to study the changes of microstructure and mechanical properties of copper tubes during floating plug drawing process, OM and EBSD methods were used to analyze the tube with different drawing deformations. The results show that the grains were elongated along the drawing direction and form fibrous tissue after drawing, the micro-hardness of tube increases and is higher along the transverse than that along the longitudinal; after the third pass deformation amount to 75%, the grain sizes are 80-100 μm in length and 8-10 μm in width. With the deformation increasing, the type of texture transforms from {001}?110? and {111}?110? texture, which is formed in original rolling, into {110}?100?and {110}?111? texture.
引文
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[11]赵郅磊,李周,肖柱.Cu-3.6%Al2O3铜合金细丝加工过程中组织结构演变规律[J].中国有色金属学报,2017,27(3):486-493.ZHAO Zhi-lei,LI Zhou,XIAO Zhu.Structure evolution of Cu-3.6%Al2O3 alloy fine wire during cold drawing[J].The Chinese Journal of Nonferrous Metals,2017,27(3):486-493.
[12]李肖蓉.铝铜合金形变与退火过程中微观组织与织构研究[D].重庆:重庆大学,2016:18-26.LI Xiao-rong.Investigation on microstructure and texture of Al-Cu alloy during deformation and recrystallization[D].Chongqing:Chongqing University,2016:18-26.
[13]李红英,严文,陈建,范新会,王雪艳.塑性变形单晶铜线材织构的研究[J].西安工业学院学报,2006,26(1):64-67.LI Hong-ying,YAN Wen,CHEN Jian,FAN Xin-hui,WANGXue-yan.Study of texture in deformed single crystal copper wires[J].Journal of Xi’an Institute of Technology,2006,26(1):64-67.
[14]杨钢,陈亮维,王剑华,王军丽,史庆南.FCC金属的织构对力学性能的影响[J].昆明理工大学学报(自然科学版),2012,37(5):24-34.YANG Gang,CHEN Liang-wei,WANG Jian-hua,WANGJun-li,SHI Qing-nan.Influences of texture of fcc metals on their mechanical properties[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2012,37(5):24-34.
[15]毛卫民.金属材料的晶体学织构与各向异性[M].北京:科学出版社,2002:33.MAO Wei-min.Crystallographic texture and anisotropy of metal materials[M].Beijing:Science Press,2002:33.
[16]史庆南,陈亮维,王效琪.大塑性变形及材料微结构表征[M].北京:科学出版社,2016:101-116.SHI Qing-nan,CHEN Liang-wei,WANG Xiao-qi.Characterization of sever plastic deformation and microstructure of materials[M].Beijing:Science Press,2016:101-116.
[2]陈大勇.基于TP2铜管材性能控制的拉拔工艺研究[D].沈阳:沈阳理工大学,2015:9-20.CHEN Da-yong.The research of the drawing processes based on property controlling of TP2 copper tube[D].Shenyang:Shenyang Ligong University,2015:9-20.
[3]王祝堂,田荣璋.铜合金及其加工手册[M].长沙:中南大学出版社,2002:130-190.WANG Zhu-tang,TIAN Rong-zhang.Copper alloy and processing manual[M].Changsha:Central South University Press,2002:130-190.
[4]李耀群,易茵菲.现代铜盘管生产技术[M].北京:冶金工业出版社,2005:20-60.LI Yao-qun,YI Yin-fei.The modern production technology of copper tube[M].Beijing:Metallurgical Industry Press,2005:20-60.
[5]王雷,李凡,蒋建清.冷轧纯铜微观组织及织构演变的特征[J].理化检验,2008,44(8):405-407.WANG Lei,LI Fan,JIANG Jian-qing.Microstructure and micro-texture evolution of cold rolling copper[J].Physical Testing and Chemical Analysis,2008,44(8):405-407.
[6]LI Ren-geng,ZHANG Shao-jian,KANG Hui-jun,CHENZong-ning,YANG Fen-fen,WANG Wei,ZOU Cun-lei,LITing-ju,WANG Tong-min.Microstructure and texture evolution in the cryorolled Cu Zr alloy[J].Journal of Alloys and Compounds,2017,693:592-600.
[7]SIDOR J J,KESTENS L A I.Analytical description of rolling textures in face-centred-cubic metals[J].Scripta Materialia,2013,68(5):273-276.
[8]ANAND G,BARAI K,MADHAVAN R,CHATTOPADHYAY P P.Evolution of annealing texture in cryo-rolled copper[J].Material Science and Engineering A,2015,638:114-120.
[9]HIRSCH J,LUCKE K.Mechanism of deformation and development of rolling texture in polycrystalline FCCmetals[J].Acta Metallurgica,1988,36(11):2863-2927.
[10]陈亮维,韩波,史庆南,起华荣,王效琪.纯铜深度塑性变形的织构组织均匀性研究[J].材料科学与工艺,2010,18(3):391-394.CHEN Liang-wei,HAN Bo,SHI Qing-nan,QI Hua-rong,WANG Xiao-qi.Unformity of texture microstructure of pure copper sheets with severe plastic deformation[J].Material Science and Technology,2010,18(3):391-394.
[11]赵郅磊,李周,肖柱.Cu-3.6%Al2O3铜合金细丝加工过程中组织结构演变规律[J].中国有色金属学报,2017,27(3):486-493.ZHAO Zhi-lei,LI Zhou,XIAO Zhu.Structure evolution of Cu-3.6%Al2O3 alloy fine wire during cold drawing[J].The Chinese Journal of Nonferrous Metals,2017,27(3):486-493.
[12]李肖蓉.铝铜合金形变与退火过程中微观组织与织构研究[D].重庆:重庆大学,2016:18-26.LI Xiao-rong.Investigation on microstructure and texture of Al-Cu alloy during deformation and recrystallization[D].Chongqing:Chongqing University,2016:18-26.
[13]李红英,严文,陈建,范新会,王雪艳.塑性变形单晶铜线材织构的研究[J].西安工业学院学报,2006,26(1):64-67.LI Hong-ying,YAN Wen,CHEN Jian,FAN Xin-hui,WANGXue-yan.Study of texture in deformed single crystal copper wires[J].Journal of Xi’an Institute of Technology,2006,26(1):64-67.
[14]杨钢,陈亮维,王剑华,王军丽,史庆南.FCC金属的织构对力学性能的影响[J].昆明理工大学学报(自然科学版),2012,37(5):24-34.YANG Gang,CHEN Liang-wei,WANG Jian-hua,WANGJun-li,SHI Qing-nan.Influences of texture of fcc metals on their mechanical properties[J].Journal of Kunming University of Science and Technology(Natural Science Edition),2012,37(5):24-34.
[15]毛卫民.金属材料的晶体学织构与各向异性[M].北京:科学出版社,2002:33.MAO Wei-min.Crystallographic texture and anisotropy of metal materials[M].Beijing:Science Press,2002:33.
[16]史庆南,陈亮维,王效琪.大塑性变形及材料微结构表征[M].北京:科学出版社,2016:101-116.SHI Qing-nan,CHEN Liang-wei,WANG Xiao-qi.Characterization of sever plastic deformation and microstructure of materials[M].Beijing:Science Press,2016:101-116.
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