Please wait a minute...
金属学报  2019, Vol. 55 Issue (4): 480-488    DOI: 10.11900/0412.1961.2018.00241
  本期目录 | 过刊浏览 |
冷旋锻变形对TB9钛合金显微组织和拉伸性能的影响
任德春1,2,苏虎虎1,2,张慧博1,王健1,金伟1,2(),杨锐1,2
1. 中国科学院金属研究所 沈阳 110016
2. 中国科学技术大学材料科学与工程学院 沈阳 110016
Effect of Cold Rotary-Swaging Deformation on Microstructure and Tensile Properties of TB9 Titanium Alloy
Dechun REN1,2,Huhu SU1,2,Huibo ZHANG1,Jian WANG1,Wei JIN1,2(),Rui YANG1,2
1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
2. School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
全文: PDF(19419 KB)   HTML
摘要: 

采用冷旋锻对TB9钛合金棒材进行多道次冷变形,利用OM、EBSD、XRD、TEM以及拉伸等实验研究了不同冷变形量TB9钛合金棒材的显微组织、织构和拉伸性能及其规律。结果表明,TB9钛合金棒材的晶粒尺寸随冷旋锻变形量的增大而减小,部分晶粒尺寸达到纳米级。同时,晶粒随变形量的增加沿旋锻轴向转动,形成择优取向,由初始{001}<110>和{001}<100>织构转变为<110>取向的α-fiber和γ-fiber {001}<110>、{112}<110>和{111}<110>织构。在亚结构、小尺寸晶粒以及织构的共同作用下,TB9钛合金的强度随变形量的增大而增加,延伸率和面缩率在70%冷变形后仍保持在一个较高的水平,具有优异的冷变形能力。

关键词 TB9钛合金冷旋锻变形显微组织织构拉伸性能    
Abstract

TB9 titanium alloy has been widely used for aerospace due to it's superior low stiffness, corrosion resistance and workability. It has been reported that cold deformation can improve the comprehensive mechanical properties of titanium alloys. At the same time, the cold rotary-swaging deformation facilitates the production of small batches and the acquisition of special shape and size bars. However, current studies on the microstructure and properties of cold rotary-swaged titanium alloys are not systematic. So, the effects of cold deformation rate on the microstructure, texture evolution and mechanical property of TB9 alloy during cold rotary-swaging were investigated using OM, EBSD, XRD, TEM and tensile test. The results showed that the grain size of TB9 titanium was refined with the increase in diameter reduction. Meanwhile, with the deformation increases, the grains rotation along the swaging axis occurs, forming a preferred orientation, the textures change from initial {001}<110> and {001}<100> to α-fiber and γ-fiber {001}<110>, {112}<110> and {111}<110>. All of grains refinement, texture components and substructures contributed to the enhancement of strength after cold rotary-swaging. And the ductile kept on a high level after 70% cold working, which means the TB9 titanium has a great cold deformation ability.

Key wordsTB9 titanium alloy    cold rotary-swaging deformation    microstructure    texture    tensile property
收稿日期: 2018-03-15     
ZTFLH:  TG146.2  
通讯作者: 金伟     E-mail: wjin@imr.ac.cn
Corresponding author: Wei JIN     E-mail: wjin@imr.ac.cn
作者简介: 任德春,男,1991年生,博士生

引用本文:

任德春, 苏虎虎, 张慧博, 王健, 金伟, 杨锐. 冷旋锻变形对TB9钛合金显微组织和拉伸性能的影响[J]. 金属学报, 2019, 55(4): 480-488.
Dechun REN, Huhu SU, Huibo ZHANG, Jian WANG, Wei JIN, Rui YANG. Effect of Cold Rotary-Swaging Deformation on Microstructure and Tensile Properties of TB9 Titanium Alloy. Acta Metall Sin, 2019, 55(4): 480-488.

链接本文:

https://www.ams.org.cn/CN/10.11900/0412.1961.2018.00241      或      https://www.ams.org.cn/CN/Y2019/V55/I4/480

图1  TB9钛合金固溶态样品的OM像、TEM像和SAED花样及EBSD分析
图2  TB9钛合金冷旋锻变形前后大角度晶界和小角度晶界所占比例
图3  TB9钛合金冷旋锻变形后显微组织OM像和EBSD分析
图4  冷旋锻变形前后TB9钛合金的XRD谱
图5  冷旋锻变形后TB9钛合金显微组织的TEM像和70%冷旋锻变形量时的SAED花样
图6  冷旋锻变形量70%时的EBSD衬度对比及取向分布
图7  冷旋锻变形态TB9钛合金的极图
图8  固溶态及冷旋锻变形态TB9钛合金的取向分布函数(ODF)图 (φ2=45o)
图9  TB9钛合金室温应力-应变曲线

Rotary-swaging rate

%

Rp0.2

MPa

Rm

MPa

A

%

Z

%

0890.5896.028.863.0
10962.0963.510.457.0
151045.01049.514.357.0
201087.01089.511.456.0
251128.51130.08.148.0
301146.01152.07.747.5
351206.01210.59.450.5
401191.51192.09.250.0
701350.01350.57.943.5
表1  不同冷旋锻变形量下TB9钛合金室温拉伸性能
图10  旋锻变形态TB9钛合金晶粒尺寸分布
1 Huang X, Cuddy J, Goel N, et al. Effect of heat treatment on the microstructure of a metastable β-titanium alloy [J]. J. Mater. Eng. Perform., 1994, 3: 560
2 Tian Y X, Li S J, Hao Y L, et al. High temperature deformation behavior and microstructure evolution mechanism transformation in Ti2448 alloy [J]. Acta Metall. Sin., 2012, 48: 837
2 田宇兴, 李述军, 郝玉琳等. Ti2448合金高温变形行为及组织演变机制的转变 [J]. 金属学报, 2012, 48: 837
3 Boyer R R, Brigge R D. The use of β titanium alloys in the aerospace industry [J]. J. Mater. Eng. Perform., 2005, 14: 681
4 Huang L J, Wang J, Zhang H B, et al. Effects of cold drawing deformation and aging temperature on microstructure and mechanical properties of TB9 titanium alloy [J]. Chin. J. Nonferrous Met., 2013, 23(Special 1): s11
4 黄鎏杰, 王 健, 张慧博等. 冷拉拔变形量和时效温度对TB9钛合金丝材组织和性能的影响 [J]. 中国有色金属学报, 2013, 23(专辑1): s11)
5 Xu X, Dong L M, Ba H B, et al. Hot deformation behavior and microstructural evolution of beta C titanium alloy in β phase field [J]. Trans. Nonferrous Met. Soc. China, 2016, 26: 2874
6 Rack H J. Plastic deformation of unaged RMI 38644 [J]. Scr. Mater., 1976, 10: 739
7 Banumathy S, Mandal R K, Singh A K. Texture and anisotropy of hot rolled Ti-16Nb alloy [J]. J. Alloys Compd., 2010, 500: L26
8 Dai S J, Wang Y, Chen F, et al. Effect of cold deformation on microstructure and mechanical properties of Ti-35Nb-9Zr-6Mo-4Sn alloy for biomedical applications [J]. Mater. Sci. Eng., 2013, A575: 35
9 Zhang Z Q, Dong L M, Guan S X, et al. Microstructure and mechanical properties of TC16 titanium alloy by room temperature roller die drawing [J]. Acta Metall. Sin., 2017, 53: 415
9 张志强, 董利民, 关少轩等. TC16钛合金辊模拉丝过程中的显微组织和力学性能 [J].金属学报, 2017, 53: 415
10 Fang S M, Lei T, Zhang Y L, et al. Application study on swaging special-shaped non-ferrous metal wire of lower plasticity [J]. Forg. Stamp. Technol., 2007, 32(5): 69
10 方树铭, 雷 霆, 张玉林等. 旋锻法加工低塑性有色金属异型材的应用研究 [J]. 锻压技术, 2007, 32(5): 69)
11 Zheng B Z, Tang X X, Tian X L, et al. Treatment methods on relative motion between clamp and hammer in numerical simulation of rotary forging for titanium alloy wire [J]. Forg. Stamp. Technol., 2017, 42(10): 195
11 郑帮智, 唐新新, 田晓琳等. 钛合金线材旋锻数值仿真中夹具与锤头相对运动的处理方法 [J]. 锻压技术, 2017, 42(10): 195)
12 Guo W Y, Xing H, Sun J. EBSD and TEM studies of deformation structure of metastable β-type titanium alloy after cold-swaging [J]. J. Chin. Electron Micros. Soc., 2008, 27: 469
12 郭文渊, 邢 辉, 孙 坚. 亚稳态β钛合金冷旋锻形变组织的EBSD和TEM研究 [J]. 电子显微学报, 2008, 27: 469
13 Pachla W, Kulczyk M, Przybysz S, et al. Effect of severe plastic deformation realized by hydrostatic extrusion and rotary swaging on the properties of CP Ti grade 2 [J]. J. Mater. Process.Technol., 2015, 221: 255
14 Alkhazraji H, El-Danaf E, Wollmann M, et al. Enhanced fatigue strength of commercially pure Ti processed by rotary swaging [J]. Adv. Mater. Sci. Eng., 2015, 2015: 301837
15 Wang H F, Han J T, Hao Q L. Influence of mandrel on the performance of titanium tube with cold rotary swaging [J]. Mater. Manuf. Processes, 2015, 30: 1251
16 Ide N, Morita T, Takahashi K, et al. Influence of cold rolling on fundamental properties of Ti-15V-3Cr-3Sn-3Al alloy [J]. Mater. Trans., 2015, 56: 1800
17 Sun J F, Zhang Z W, Zhang M L, et al. Microstructure evolution and their effects on the mechanical properties of TB8 titanium alloy [J]. J. Alloys Compd., 2016, 663: 769
18 Chung C C, Wang S W, Chen Y C, et al. Effect of cold rolling on structure and tensile properties of cast Ti-7.5Mo alloy [J]. Mater. Sci. Eng., 2015, A631: 52
19 Cai S, Bailey D M, Kay L E. Effect of annealing and cold work on mechanical properties of beta III titanium [J]. J. Mater. Eng. Perform., 2012, 21: 2559
20 Xu T W, Li J S, Zhang S S, et al. Cold deformation behavior of the Ti-15Mo-3Al-2.7Nb-0.2Si alloy and its effect on α precipitation and tensile properties in aging treatment [J]. J. Alloys Compd., 2016, 682: 404
21 Wu X, Tao N, Hong Y, et al. Microstructure and evolution of mechanically-induced ultrafine grain in surface layer of Al-alloy subjected to USSP [J]. Acta Mater., 2002, 50: 2075
22 Zhao H L, Ni S, Song M, et al. Grain refinement via formation and subdivision of microbands and thin laths structures in cold-rolled hafnium [J]. Mater. Sci. Eng., 2015, A645: 328
23 Engler O, Tomé C N, Huh M Y. A study of through-thickness texture gradients in rolled sheets [J]. Metall. Mater. Trans., 2000, 31A: 2299
24 Miyamoto H, Xiao T, Uenoya T, et al. Effect of simple shear deformation prior to cold rolling on texture and ridging of 16% Cr ferritic stainless steel sheets [J]. ISIJ Int., 2010, 50: 1653
25 Ray R K, Jonas J J, Hook R E. Cold rolling and annealing textures in low carbon and extra low carbon steels [J]. Int. Mater. Rev.,1994, 39: 129
26 Conrad H. Effect of interstitial solutes on the strength and ductility of titanium [J]. Prog. Mater. Sci., 1981, 26: 123
27 Zhang Y W, Li S J, Obbard E G, et al. Elastic properties of Ti-24Nb-4Zr-8Sn single crystals with bcc crystal structure [J]. Acta Mater., 2011, 59: 3081
28 Fang T H, Li W L, Tao N R, et al. Revealing extraordinary intrinsic tensile plasticity in gradient nano-grained copper [J]. Science, 2011, 331: 1587
[1] 耿遥祥, 樊世敏, 简江林, 徐澍, 张志杰, 鞠洪博, 喻利花, 许俊华. 选区激光熔化专用AlSiMg合金成分设计及力学性能[J]. 金属学报, 2020, 56(6): 821-830.
[2] 李源才, 江五贵, 周宇. 纳米孔洞对单晶/多晶Ni复合体拉伸性能的影响[J]. 金属学报, 2020, 56(5): 776-784.
[3] 余晨帆, 赵聪聪, 张哲峰, 刘伟. 选区激光熔化316L不锈钢的拉伸性能[J]. 金属学报, 2020, 56(5): 683-692.
[4] 杨柯,史显波,严伟,曾云鹏,单以银,任毅. 新型含Cu管线钢——提高管线耐微生物腐蚀性能的新途径[J]. 金属学报, 2020, 56(4): 385-399.
[5] 李秀程,孙明煜,赵靖霄,王学林,尚成嘉. 铁素体-贝氏体/马氏体双相钢中界面的定量化晶体学表征[J]. 金属学报, 2020, 56(4): 653-660.
[6] 钱月,孙蓉蓉,张文怀,姚美意,张金龙,周邦新,仇云龙,杨健,成国光,董建新. NbFe22Cr5Al3Mo合金显微组织和耐腐蚀性能的影响[J]. 金属学报, 2020, 56(3): 321-332.
[7] 于雷,罗海文. 部分再结晶退火对无取向硅钢的磁性能与力学性能的影响[J]. 金属学报, 2020, 56(3): 291-300.
[8] 王希,刘仁慈,曹如心,贾清,崔玉友,杨锐. 冷却速率对β凝固γ-TiAl合金硼化物和室温拉伸性能的影响[J]. 金属学报, 2020, 56(2): 203-211.
[9] 肖宏,许朋朋,祁梓宸,吴宗河,赵云鹏. 感应加热异温轧制制备钢/铝复合板[J]. 金属学报, 2020, 56(2): 231-239.
[10] 程超,陈志勇,秦绪山,刘建荣,王清江. TA32钛合金厚板的微观组织、织构与力学性能[J]. 金属学报, 2020, 56(2): 193-202.
[11] 邓丽萍,崔凯旋,汪炳叔,向红亮,李强. AZ31镁合金室温多道次压缩过程微观组织和织构演变的研究[J]. 金属学报, 2019, 55(8): 976-986.
[12] 李鑫,董月成,淡振华,常辉,方志刚,郭艳华. 等通道角挤压制备超细晶纯Ti的腐蚀性能研究[J]. 金属学报, 2019, 55(8): 967-975.
[13] 黄森森,马英杰,张仕林,齐敏,雷家峰,宗亚平,杨锐. α+β两相钛合金元素再分配行为及其对显微组织和力学性能的影响[J]. 金属学报, 2019, 55(6): 741-750.
[14] 刘巧沐,黄顺洲,刘芳,杨艳,南宏强,张东,孙文儒. B含量对K417G合金凝固过程中组织演变和力学性能的影响[J]. 金属学报, 2019, 55(6): 720-728.
[15] 蓝春波,梁家能,劳远侠,谭登峰,黄春艳,莫羡忠,庞锦英. 冷轧态Ti-35Nb-2Zr-0.3O合金的异常热膨胀行为[J]. 金属学报, 2019, 55(6): 701-708.