退火温度对纯钛TA1织构及各向异性的影响
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摘要
通过X线衍射(XRD)和电子背散射衍射(EBSD)等分析技术,研究退火温度对冷轧态TA1钛板显微组织及织构的影响规律。研究结果表明:TA1钛板冷轧退火后,微观组织发生再结晶并形成典型的双峰分裂基面织构特征。在退火温度不大于700℃时,组织变化主要以回复与再结晶的形核生长为主,生成■和■类型再结晶织构组分,此时轧制织构组分逐渐消失;当退火温度达到800℃时,晶粒变化以合并长大为主,再结晶织构组分■的强度也继续增强。同时,织构组分对板材的各向异性有着直接影响,由于棱锥型织构■再结晶织构组分特征的作用,可开动的滑移系统分别为易激活的柱面滑移和较难开动的基面滑移或棱锥面滑移,从而导致板面内TD方向的拉伸强度比RD方向的拉伸强度大,而45°方向强度最低,从而产生较大的板面各向异性。
The effect of evolution of microstructure and texture of commercially pure titanium(TA1)annealed at different temperatures was investigated by X-ray diffraction(XRD),and electron backscattered diffraction(EBSD).The results show that recovery and recrystallization of the cold rolled TA1 titanium sheet occur during the annealing process,and typical TD-split basal texture was formed.When the annealing temperature is below 700℃,the microstructure is characterized by recovery and recrystallization,and recrystallization texture components are presented.The as-rolled texture component is gradually weakened and disappears with the increase of the heat treatment temperature.When the annealing temperature reaches 800℃,the grain growth is dominated by merged-growth and the intensity of■recrystallized texture component continue to increase.In addition,anisotropy of mechanical properties of TA1 sheet is related to the texture components.Due to pyramid textures■and■recrystallization textures,the cylinderslip is respectively easier to be activated and the baseslip or pyramidal planeslip becomes more difficult to be activated respectively,which leads to greater tensile strength in the TD direction than the RD direction of the sheet.As a result,the anisotropy of mechanical properties of TA1 sheet is caused.
The effect of evolution of microstructure and texture of commercially pure titanium(TA1)annealed at different temperatures was investigated by X-ray diffraction(XRD),and electron backscattered diffraction(EBSD).The results show that recovery and recrystallization of the cold rolled TA1 titanium sheet occur during the annealing process,and typical TD-split basal texture was formed.When the annealing temperature is below 700℃,the microstructure is characterized by recovery and recrystallization,and recrystallization texture components are presented.The as-rolled texture component is gradually weakened and disappears with the increase of the heat treatment temperature.When the annealing temperature reaches 800℃,the grain growth is dominated by merged-growth and the intensity of■recrystallized texture component continue to increase.In addition,anisotropy of mechanical properties of TA1 sheet is related to the texture components.Due to pyramid textures■and■recrystallization textures,the cylinderslip is respectively easier to be activated and the baseslip or pyramidal plane
引文
[1]SCHUTZ R W,WATKINS H B.Recent developments in titanium alloy application in the energy industry[J].Materials Science and Engineering A,1998,243:305-315.
[2]SHABANI M O,MAZAHERY A.Application of GA to optimize the process conditions of Al Matrix nano-composites[J].Composites Part B,2013,45:185-191.
[3]邵娟.钛合金及其应用研究进展[J].稀有金属与硬质合金,2007,35(4):61-65.SHAO Juan.Application and development of titanium alloys[J].Rare Metals and Cemented Carbides,2007,35(4):61-65.
[4]钱九红.航空航天用新型钛合金的研究发展及应用[J].稀有金属,2005,24(3):218-223.QIAN Jiuhong,Application and development of new titanium alloys for aerospace[J].Chinese Journal of Rare Metals,2005,24(3):218-223.
[5]BOZZOLO N,CHAN L,ROLLETT A D.Misorientations induced by deformation twinning in titanium[J].Journal of Applied Crystallography,2010,43:596-602.
[6]RANDLE V,OWEN G.Mechanisms of grain boundary engineering[J].Acta Materialia,2006,54:1777-1783.
[7]SINGH A K,SCHWARZER R A.Texture and anisotropy of mechanical properties in titanium and its alloys[J].Zeitschrift Fur Metallkunde,2000,91:702-716.
[8]ZAEFFERER S.A study of active deformation systems in titanium alloys:dependence on alloy composition and correlation with deformation texture[J].Materials Science and Engineering A,2003,344(1/2):20-30.
[9]PANDA S,SAHOO S K,DASH A,et al.Orientation dependent mechanical properties of commercially pure(cp)titanium[J].Materials Characterization,2014,98:93-101.
[10]SINHA S,GHOSH A,GURAO N P.Effect of initial orientation on the tensile properties of commercially pure titanium[J].Philosophical Magazine,2016,96:1485-1508.
[11]UNIWERSA?A,WRóBEL M,WIERZBANOWSKI K,et al.Microstructure,texture and mechanical characteristics of asymmetrically rolled polycrystalline copper[J].Materials Characterization,2016,118:575-583.
[12]HUMPHREYS F J,HATHERLY M.Recrystallisation and related annealing phenomenon[M].2nd ed.London:Elsevier,2004:1-658.
[13]ZHONG Y,YIN F,NAGAI K.Role of deformation twin on texture evolution in coldrolled commercial-purity Ti[J].Journal of Materials Research,2008,23:2954-2966.
[14]CHUN Y B,YU S H,SEMIATIN S L,et al.Effect of deformation twinning on microstructure and texture evolution during cold rolling of CP-titanium[J].Materials Science and Engineering A,2005,398:209-219.
[15]BOZZOLO N,DEWOBROTO N,WENK H R,et al.Microstructure and microtexture of highly cold-rolled commercially pure titanium[J].Journal of Materials Science,2007,42:2405-2416.
[16]SAHOO S K,PANDA S,SABAT R K,et al.Effect of pre-annealing strains on annealing texture developments in commercially pure(CP)titanium[J].Philosophical Magazine,2015,95:1105-1124.
[17]LIU M,CHEN G,CHOU S.On the deformation texture of square-shaped deep-drawing commercially pure Ti sheet[J].Materials Chemistry and Physics,2002,77:765-772.
[18]徐国富,崔雪敏,彭小燕,等.冷轧工业纯钛的退火再结晶行为[J].稀有金属材料与工程,2013,42(11):2263-2268.XU Guofu,CUI Xuemin,PENG Xiaoyan,et al.Annealing heat treatment behavior in CP-Ti[J].Rare Metal Materials and Engineering,2013,42(11):2263-2268.
[19]SEWARD G G E,CELOTTO S,POND R C,et al.In situ SEM-EBSD observations of the HCP to BCC phase transformation in commercially pure titanium[J].Acta Materialia,2004,52(4):821-832.
[20]BOZZOLO N,DEWOBROTO N,GROSDIDIER T,et al.Texture evolution during grain growth in recrystallized commercially pure titanium[J].Materials Science and Engineering A,2005,397:346-355.
[21]WANG Ying,HE Weijun,LIU Na,et al.Effect of pre-annealing deformation on the recrystallized texture and grain boundary misorientaion in commercial pure titanium[J].Material Characterization,2018,136:1-11.
[22]李军,于辉,史庆南,等.纯钛高温变形行为及其在精轧板中的应用[J].中南大学学报(自然科学版),2016,47(6):1888-1894.LI Jun,YU Hui,SHI Qingnan,et al.Hot deformation behavior of pure titanium and its application in hot sheet finish rolling[J].Journal of Central South University(Science and Technology),2016,47(6):1888-1894.
[23]WANG Y N,HUANG J C.Texture analysis in hexagonal materials[J].Materials Chemistry and Physics,2003,81:11-26.
[24]HAYAMA A O F,SANDIM H R Z.Annealing behavior of coarse-grained titanium deformed by cold rolling[J].Materials Science and Engineering A,2006,418:182-192.
[25]詹从堃,陈志永,唐林.退火纯钛板压缩力学性能的各向异性[J].中南大学学报(自然科学版),2012,43(11):4253-4258.ZHAN Congkun,CHEN Zhiyong,TANG Lin.Anisotropy of compressive mechanical properties of annealed pure titanium sheet[J].Journal of Central South University(Science and Technology),2012,43(11):4253-4258.
[26]ATASI G,AMIT S,GURAO N P.Effect of rolling mode and annealing temperature on microstructure and texture of commercially pure-titanium[J].Material Characterization,2017,125:83-93.
[27]PARTRIDGE P G.The crystallography and deformation modes of hexagonal close-packed metals[J].Metal Review,1967,12:169-194.
[28]朱知寿,顾家琳,陈南平.钛的织构与力学性能各向异性关系研究[J].机械工程材料,1994,18(2):23-25.ZHU Zhishou,GU Jialin,CHEN Nanping.Research on the relationship between texture and mechanical property anisotropy in commercially pure titanium sheets[J].Materials for Mechanical Engineering,1994,18(2):23-25.
[2]SHABANI M O,MAZAHERY A.Application of GA to optimize the process conditions of Al Matrix nano-composites[J].Composites Part B,2013,45:185-191.
[3]邵娟.钛合金及其应用研究进展[J].稀有金属与硬质合金,2007,35(4):61-65.SHAO Juan.Application and development of titanium alloys[J].Rare Metals and Cemented Carbides,2007,35(4):61-65.
[4]钱九红.航空航天用新型钛合金的研究发展及应用[J].稀有金属,2005,24(3):218-223.QIAN Jiuhong,Application and development of new titanium alloys for aerospace[J].Chinese Journal of Rare Metals,2005,24(3):218-223.
[5]BOZZOLO N,CHAN L,ROLLETT A D.Misorientations induced by deformation twinning in titanium[J].Journal of Applied Crystallography,2010,43:596-602.
[6]RANDLE V,OWEN G.Mechanisms of grain boundary engineering[J].Acta Materialia,2006,54:1777-1783.
[7]SINGH A K,SCHWARZER R A.Texture and anisotropy of mechanical properties in titanium and its alloys[J].Zeitschrift Fur Metallkunde,2000,91:702-716.
[8]ZAEFFERER S.A study of active deformation systems in titanium alloys:dependence on alloy composition and correlation with deformation texture[J].Materials Science and Engineering A,2003,344(1/2):20-30.
[9]PANDA S,SAHOO S K,DASH A,et al.Orientation dependent mechanical properties of commercially pure(cp)titanium[J].Materials Characterization,2014,98:93-101.
[10]SINHA S,GHOSH A,GURAO N P.Effect of initial orientation on the tensile properties of commercially pure titanium[J].Philosophical Magazine,2016,96:1485-1508.
[11]UNIWERSA?A,WRóBEL M,WIERZBANOWSKI K,et al.Microstructure,texture and mechanical characteristics of asymmetrically rolled polycrystalline copper[J].Materials Characterization,2016,118:575-583.
[12]HUMPHREYS F J,HATHERLY M.Recrystallisation and related annealing phenomenon[M].2nd ed.London:Elsevier,2004:1-658.
[13]ZHONG Y,YIN F,NAGAI K.Role of deformation twin on texture evolution in coldrolled commercial-purity Ti[J].Journal of Materials Research,2008,23:2954-2966.
[14]CHUN Y B,YU S H,SEMIATIN S L,et al.Effect of deformation twinning on microstructure and texture evolution during cold rolling of CP-titanium[J].Materials Science and Engineering A,2005,398:209-219.
[15]BOZZOLO N,DEWOBROTO N,WENK H R,et al.Microstructure and microtexture of highly cold-rolled commercially pure titanium[J].Journal of Materials Science,2007,42:2405-2416.
[16]SAHOO S K,PANDA S,SABAT R K,et al.Effect of pre-annealing strains on annealing texture developments in commercially pure(CP)titanium[J].Philosophical Magazine,2015,95:1105-1124.
[17]LIU M,CHEN G,CHOU S.On the deformation texture of square-shaped deep-drawing commercially pure Ti sheet[J].Materials Chemistry and Physics,2002,77:765-772.
[18]徐国富,崔雪敏,彭小燕,等.冷轧工业纯钛的退火再结晶行为[J].稀有金属材料与工程,2013,42(11):2263-2268.XU Guofu,CUI Xuemin,PENG Xiaoyan,et al.Annealing heat treatment behavior in CP-Ti[J].Rare Metal Materials and Engineering,2013,42(11):2263-2268.
[19]SEWARD G G E,CELOTTO S,POND R C,et al.In situ SEM-EBSD observations of the HCP to BCC phase transformation in commercially pure titanium[J].Acta Materialia,2004,52(4):821-832.
[20]BOZZOLO N,DEWOBROTO N,GROSDIDIER T,et al.Texture evolution during grain growth in recrystallized commercially pure titanium[J].Materials Science and Engineering A,2005,397:346-355.
[21]WANG Ying,HE Weijun,LIU Na,et al.Effect of pre-annealing deformation on the recrystallized texture and grain boundary misorientaion in commercial pure titanium[J].Material Characterization,2018,136:1-11.
[22]李军,于辉,史庆南,等.纯钛高温变形行为及其在精轧板中的应用[J].中南大学学报(自然科学版),2016,47(6):1888-1894.LI Jun,YU Hui,SHI Qingnan,et al.Hot deformation behavior of pure titanium and its application in hot sheet finish rolling[J].Journal of Central South University(Science and Technology),2016,47(6):1888-1894.
[23]WANG Y N,HUANG J C.Texture analysis in hexagonal materials[J].Materials Chemistry and Physics,2003,81:11-26.
[24]HAYAMA A O F,SANDIM H R Z.Annealing behavior of coarse-grained titanium deformed by cold rolling[J].Materials Science and Engineering A,2006,418:182-192.
[25]詹从堃,陈志永,唐林.退火纯钛板压缩力学性能的各向异性[J].中南大学学报(自然科学版),2012,43(11):4253-4258.ZHAN Congkun,CHEN Zhiyong,TANG Lin.Anisotropy of compressive mechanical properties of annealed pure titanium sheet[J].Journal of Central South University(Science and Technology),2012,43(11):4253-4258.
[26]ATASI G,AMIT S,GURAO N P.Effect of rolling mode and annealing temperature on microstructure and texture of commercially pure-titanium[J].Material Characterization,2017,125:83-93.
[27]PARTRIDGE P G.The crystallography and deformation modes of hexagonal close-packed metals[J].Metal Review,1967,12:169-194.
[28]朱知寿,顾家琳,陈南平.钛的织构与力学性能各向异性关系研究[J].机械工程材料,1994,18(2):23-25.ZHU Zhishou,GU Jialin,CHEN Nanping.Research on the relationship between texture and mechanical property anisotropy in commercially pure titanium sheets[J].Materials for Mechanical Engineering,1994,18(2):23-25.