正在加载图片...
·352· 工程科学学报,第37卷,第3期 0001)为主:换向镦拔的小变形区以{11221123)织 tures on microstructure and texture of Ti-3Al-4.5V-5Mo titanium alloy.Chin J Rare Met,2008,32(2):144 构为主,同时还存在锥面织构{112》}〈1i23).单向镦 (李兴无,路民旭,沙爱学,等.退火温度对T-3A-4.5V一 拔的大变形区以柱面织构和锥面织构为主,基面织构 5M6钛合金显微组织和织构的影响.稀有金属,2008,32 含量已经很少:而换向镦拔的大变形区以锥面织构为 (2):144) 主,柱面织构的含量较少,还含有一定量的基面织构. ] You Z P,Hui S X,Ye W J,et al.Effect of texture on dynamic 从塑性变形的角度来看,材料在经过多次锻造后,累积 mechanical property of TC4 rolled plate.Chin JRare Met,2012, 的形变能增加,应力会发生集中,增加了柱面滑移和锥 36(1):31 (尤振平,惠松骁,叶文君,等.TC4钛合金轧板的织构对动 面滑移的可能性,缓解了应力集中,因此多种滑移系同 态力学性能影响.稀有金属,2012,36(1):31) 时开动是降低织构强度的主要原因. [8]He L,Dehghan-Manshadi A,Dippenaar R J.The evolution of mi- 3结论 crostructure of Ti-6Al-4V alloy during concurrent hot deformation and phase transformation.Mater Sci Eng A,2012,549:163 (1)两种不同锻造方式下,难变形区、小变形区及 [9]Sun S,Zong Y,Shan D,et al.Hot deformation behavior and mi- 大变形区α相及B相的分布差别不大,均为球状或近 erostructure evolution of TC4 titanium alloy.Trans Nonferrous Met 球状的α相以及片层相间的阝转变组织,组织均匀性 Soe China,2010,20(11):2181 [10]Ding R,Guo Z X,Wilson A.Microstructural evolution of a Ti- 基本一致. 6Al-4V alloy during thermomechanical processing.Mater Sci (2)两种不同锻造方式下,锻坯不同区域织构组 EngA,2002,327(2):233 分以及含量变化较为明显.从边缘区域向心部区域, 1] Settefrati A,Aeby-Gautier E,Dehmas M,et al.Precipitation in 累积的形变增大,取向由{0001}基面织构向{1120}柱 a near B titanium alloy on ageing:influence of heating rate and 面织构以及{1122}、{1123}锥面织构转变.从含量上 chemical composition of the B-metastable phase.Solid State Phe- nomena,2011,172-174:760 可以看出,累积的形变量越大,材料的取向分布越 [12]Zeng L,Bieler TR.Effects of working,heat treatment,and ag- 均匀. ing on microstructural evolution and crystallographic texture of a, (3)从织构的极密度以及取向的均匀性可以看 a',a"and B phases in Ti-6Al-4V wire.Mater Sci Eng A, 出,换向镦拔对于取向均匀性的改善较单向镦拔稍好 2005,392(1-2):403 13] Bruneseaux F,Aeby-Gautier E,Geandier G,et al.In situ char- acterizations of phase transformations kinetics in the Til7 titanium 参考文献 alloy by electrical resistivity and high temperature synchrotron X- [Wang Y N,Huang J C.Texture analysis in hexagonal materials ray diffraction.Mater Sci Eng A,2008.476(1-2):60 Mater Chem Phys,2003,81(1):11 14]Glavicic M G,Kobryn PA,Semiatin S L.Validation of an auto- 2]Xu GD.Wang F E.Development and application on high-tem- mated EBSD method to deduce the B-phase texture in Ti-6Al- perature Ti-based alloys.Chin J Rare Met,2008,32(6):774 4V with a colony microstructure.Mater Sci Eng A,2004,385 (许国栋,王风娥.高温钛合金的发展和应用.稀有金属, (1-2):372 2008,32(6):774) [15]Stanford N,Bate P S.Crystallographie variant selection in Ti- Qian J H.Application and development of new titanium alloys for 6A-4V.Acta Mater,2004,52(17):5215 aerospace.Chin J Rare Met,2000,24(3):218 [16]Germain L,Gey N,Humbert M,et al.Texture heterogeneities (钱九红.航空航天用新型钛合金的研究发展及应用.稀有金 induced by subtransus processing of near a titanium alloys.Acta 属,2000,24(3):218) Mater,2008,56(16):4298 4]Peng Y P,Zeng FC,Wang JJ,et al.Development,application [17]Bridier F,Villechaise P,Mendez J.Slip and fatigue crack for- and feature of titanium alloys in foreign aviation industry.I Mater mation processes in an a/B titanium alloy in relation to crystallo- Eng,1997(10):3 graphic texture on different scales.Acta Mater,2008,56(15): (彭艳萍,曾凡昌,王俊杰,等.国外航空钛合金的发展应用 3951 及其特点分析.材料工程,1997(10):3) l8] Semiatin S L,Seetharaman V,Weiss I.The thermomechanical 5]Fei Y,Zhu ZS,Wang X N,et al.Influence of forging process on processing of alpha/beta titanium alloys.JOM,1997,49 (6): microstructure and mechanical properties of a new lowost titani- 33 um alloy.Chin J Rare Met,2013,37 (2):186 [19]Yu Y N.The Fundamental of Materials Science.Beijing:Higher (费跃,朱知寿,王新南,等.锻造工艺对新型低成本钛合金 Education Press,2006:536 组织和性能影响.稀有金属,2013,37(2):186) (余永宁.材料科学基础.北京:高等教育出版社,2006: [6]Li X W,Lu M X,Sha A X,et al.Effect of annealing tempera- 536)工程科学学报,第 37 卷,第 3 期 〈0001〉为主; 换向镦拔的小变形区以{ 112- 2 - } 〈112- 3〉织 构为主,同时还存在锥面织构{ 112- 2} 〈1 - 1 - 23〉. 单向镦 拔的大变形区以柱面织构和锥面织构为主,基面织构 含量已经很少; 而换向镦拔的大变形区以锥面织构为 主,柱面织构的含量较少,还含有一定量的基面织构. 从塑性变形的角度来看,材料在经过多次锻造后,累积 的形变能增加,应力会发生集中,增加了柱面滑移和锥 面滑移的可能性,缓解了应力集中,因此多种滑移系同 时开动是降低织构强度的主要原因. 3 结论 ( 1) 两种不同锻造方式下,难变形区、小变形区及 大变形区 α 相及 β 相的分布差别不大,均为球状或近 球状的 α 相以及片层相间的 β 转变组织,组织均匀性 基本一致. ( 2) 两种不同锻造方式下,锻坯不同区域织构组 分以及含量变化较为明显. 从边缘区域向心部区域, 累积的形变增大,取向由{ 0001} 基面织构向{ 112- 0} 柱 面织构以及{ 112- 2} 、{ 112- 3} 锥面织构转变. 从含量上 可以看 出,累 积 的 形 变 量 越 大,材料的取向分布越 均匀. ( 3) 从织构的极密度以及取向的均匀性可以看 出,换向镦拔对于取向均匀性的改善较单向镦拔稍好. 参 考 文 献 [1] Wang Y N,Huang J C. Texture analysis in hexagonal materials. Mater Chem Phys,2003,81( 1) : 11 [2] Xu G D,Wang F E. Development and application on high-tem￾perature Ti-based alloys. Chin J Rare Met,2008,32( 6) : 774 ( 许国栋,王凤娥. 高温钛合金的发展和应用. 稀 有 金 属, 2008,32( 6) : 774) [3] Qian J H. Application and development of new titanium alloys for aerospace. Chin J Rare Met,2000,24( 3) : 218 ( 钱九红. 航空航天用新型钛合金的研究发展及应用. 稀有金 属,2000,24( 3) : 218) [4] Peng Y P,Zeng F C,Wang J J,et al. Development,application and feature of titanium alloys in foreign aviation industry. J Mater Eng,1997( 10) : 3 ( 彭艳萍,曾凡昌,王俊杰,等. 国外航空钛合金的发展应用 及其特点分析. 材料工程,1997( 10) : 3) [5] Fei Y,Zhu Z S,Wang X N,et al. Influence of forging process on microstructure and mechanical properties of a new low-cost titani￾um alloy. Chin J Rare Met,2013,37( 2) : 186 ( 费跃,朱知寿,王新南,等. 锻造工艺对新型低成本钛合金 组织和性能影响. 稀有金属,2013,37( 2) : 186) [6] Li X W,Lu M X,Sha A X,et al. Effect of annealing tempera￾tures on microstructure and texture of Ti--3Al--4. 5V--5Mo titanium alloy. Chin J Rare Met,2008,32( 2) : 144 ( 李兴无,路民旭,沙爱学,等. 退火温度对 Ti--3Al--4. 5V-- 5Mo 钛合金显微组织和织构的影响. 稀 有 金 属,2008,32 ( 2) : 144) [7] You Z P,Hui S X,Ye W J,et al. Effect of texture on dynamic mechanical property of TC4 rolled plate. Chin J Rare Met,2012, 36( 1) : 31 ( 尤振平,惠松骁,叶文君,等. TC4 钛合金轧板的织构对动 态力学性能影响. 稀有金属,2012,36( 1) : 31) [8] He L,Dehghan-Manshadi A,Dippenaar R J. The evolution of mi￾crostructure of Ti--6Al--4V alloy during concurrent hot deformation and phase transformation. Mater Sci Eng A,2012,549: 163 [9] Sun S,Zong Y,Shan D,et al. Hot deformation behavior and mi￾crostructure evolution of TC4 titanium alloy. Trans Nonferrous Met Soc China,2010,20( 11) : 2181 [10] Ding R,Guo Z X,Wilson A. Microstructural evolution of a Ti-- 6Al--4V alloy during thermomechanical processing. Mater Sci Eng A,2002,327( 2) : 233 [11] Settefrati A,Aeby-Gautier E,Dehmas M,et al. Precipitation in a near β titanium alloy on ageing: influence of heating rate and chemical composition of the β-metastable phase. Solid State Phe￾nomena,2011,172 - 174: 760 [12] Zeng L,Bieler T R. Effects of working,heat treatment,and ag￾ing on microstructural evolution and crystallographic texture of α, α',α″ and β phases in Ti--6Al--4V wire. Mater Sci Eng A, 2005,392( 1 - 2) : 403 [13] Bruneseaux F,Aeby-Gautier E,Geandier G,et al. In situ char￾acterizations of phase transformations kinetics in the Ti17 titanium alloy by electrical resistivity and high temperature synchrotron X￾ray diffraction. Mater Sci Eng A,2008,476( 1 - 2) : 60 [14] Glavicic M G,Kobryn P A,Semiatin S L. Validation of an auto￾mated EBSD method to deduce the β-phase texture in Ti--6Al-- 4V with a colony-α microstructure. Mater Sci Eng A,2004,385 ( 1 - 2) : 372 [15] Stanford N,Bate P S. Crystallographic variant selection in Ti-- 6Al--4V. Acta Mater,2004,52( 17) : 5215 [16] Germain L,Gey N,Humbert M,et al. Texture heterogeneities induced by subtransus processing of near α titanium alloys. Acta Mater,2008,56( 16) : 4298 [17] Bridier F,Villechaise P,Mendez J. Slip and fatigue crack for￾mation processes in an α/β titanium alloy in relation to crystallo￾graphic texture on different scales. Acta Mater,2008,56( 15) : 3951 [18] Semiatin S L,Seetharaman V,Weiss I. The thermomechanical processing of alpha / beta titanium alloys. JOM,1997,49 ( 6) : 33 [19] Yu Y N. The Fundamental of Materials Science. Beijing: Higher Education Press,2006: 536 ( 余永宁. 材料科学基础. 北京: 高等教育出版社,2006: 536) · 253 ·
<<向上翻页
©2008-现在 cucdc.com 高等教育资讯网 版权所有