Effect of rolling temperature and amount on microstructure and mechanical properties of TB2 titanium alloy

doi:10.13251/j.issn.0254-6051.2023.02.032

Abstract

Abstract: Effects of rolling temperature and deformation amount on microstructure, phase structure and mechanical properties of the TB2 titanium alloy were studied by means of X-ray diffractometer, optical microscope, scanning electron microscope, hardness tester and universal tensile testing machine. The results show that after rolling at 600 ℃, the TB2 titanium alloy consists of β and α phases. At the same rolling temperature, as the deformation amount increases, the grains in the alloy are elongated, the β phase in the matrix is partially broken, and a large amount of recrystallization grains form on the grain boundaries. When the rolling temperature is 600 ℃ and the deformation is 60%, the maximum tensile strength of the alloy can reach 1360 MPa and the elongation is 5.7%. When the rolling temperature is 600 ℃ and the deformation is 40%, the maximum tensile strength of the alloy reaches 1270 MPa, the elongation is 10.9%, and the comprehensive mechanical properties are better.

Key words: TB2 titanium alloy, rolling temperature, microstructure, mechanical properties

CLC Number:

TG166.5

Zhang Xiong, Jing Ran, Zhang Qing, Liu Yirou, Wu Qian, Li Jianghua, Chui Pengfei. Effect of rolling temperature and amount on microstructure and mechanical properties of TB2 titanium alloy[J]. Heat Treatment of Metals, 2023, 48(2): 206-211.

References

[1]Niu Y, Hou H L, Li M Q, et al. High temperature deformation behavior of a near alpha Ti600 titanium alloy[J]. Materials Science and Engineering A, 2008, 492(1): 24-28.
[2]朱知寿. 我国航空用钛合金技术研究现状及发展[J]. 航空材料学报, 2014, 34(4): 44-50.
Zhu Zhishou. Recent research and development of titanium alloys for aviation application in China[J]. Journal of Aeronautical Materials, 2014, 34(4): 44-50.
[3]Boyer R R, Briggs R D. The use of β titanium alloys in the aerospace industry[J]. Journal of Materials Engineering and Performance, 2005, 14(6): 681-685.
[4]Fang W P, Chen L, Shi Y W, et al. Research development and application of damage tolerance titanium alloy[J]. Journal of Materials Engineering, 2010(9): 95-98.
[5]李思兰, 侯智敏, 尹雁飞, 等. 热处理对热加工态TB2钛合金显微组织及力学性能的影响[J]. 钛工业进展, 2015, 32(6): 31-35.
Li Silan, Hou Zhimin, Yin Yanfei, et al. Influence of heat treatment on microstructure and mechanical properties of TB2 titanium alloy in hot working state[J]. Titanium Industry Progress, 2015, 32(6): 31-35.
[6]张利军, 王幸运, 郭启义, 等. 钛合金材料在我国航空紧固件中的应用[J]. 航空制造技术, 2013, 16: 129-133.
Zhang Lijun, Wang Xingyun, Guo Qiyi, et al. Application of titanium alloy in Chinese aircraft fastener[J]. Aeronautical Manufacturing Technology, 2013, 16: 129-133.
[7]卢轶, 王俭, 王红武. 热处理工艺对TB2钛合金组织和性能的影响[J]. 稀有金属快报, 2008, 27(8): 29-33.
Lu Yi, Wang Jian, Wang Hongwu. Effect of heat-treatment process on structure and property of TB2 titanium alloy[J]. Rare Metals Letters, 2008, 27(8): 29-33.
[8]Alberto O, Li F, Daniel E O, et al. On the ductility of alpha titanium: The effect of temperature and deformation mode[J]. Acta Materialia, 2018, 149: 1-10.
[9]Liu S F, Li M Q, Luo J, et al. Deformation behavior in the isothermal compression of Tin-5Al-5Mo-5V-1Cr-1Fe alloy[J]. Materials Science and Engineering A, 2014, 589: 15-22.
[10]Jones N G, Dashwood R J, Dye D, et al. Thermomechanical processing of Ti-5Al-5Mo-5V-3Cr[J]. Materials Science and Engineering A, 2008, 490(1/2): 369-377.
[11]Naydenkin E V, Mishin I P, Ratochka I V, et al. The effect of alpha-case formation on plastic deformation and fracture of near β titanium alloy[J]. Materials Science and Engineering A, 2020, 769: 138495.
[12]贺金宇, 李德富, 陈海珊, 等. TB2合金锻造工艺与组织性能的研究[J]. 稀有金属材料与工程, 2006, 35(S1): 152-155.
He Jinyu, Li Defu, Chen Haishan, et al. Microstructures and mechanical properties of TB2 forgings[J]. Rare Metal Materials and Engineering, 2006, 35(S1): 152-155.
[13]罗斌莉, 毛江虹, 林海峰, 等. TB2钛合金的热加工与热处理工艺[J]. 中国有色金属学报, 2010, 20: 620-623.
Luo Binli, Mao Jianghong, Lin Haifeng, et al. Heat processing and treatment technology of TB2 titanium alloy[J]. The Chinese Journal of Nonferrous Metals, 2010, 20: 620-623.
[14]杨文甲. 对TB2钛合金板材热处理的研究[J]. 有色矿冶, 1993(4): 27-30.
Yang Wenjia. Research on heat treatment of TB2 titanium alloy sheet[J]. Nonferrous Mining and Metallurgy, 1993(4): 27-30.
[15]吴华, 李长亮, 曲恒磊, 等. β钛合金强化的技术途径[J]. 热加工工艺, 2010, 39(18): 62-66.
Wu Hua, Li Changliang, Qu Henglei, et al. Strengthening methods for beta titanium alloys[J]. Hot Working Technology, 2010, 39(18): 62-66.
[16]倪沛彤, 韩明臣, 朱梅生, 等. 热处理制度对TB2钛合金带材力学性能及显微组织的影响[J]. 钛工业进展, 2012, 29(6): 19-21.
Ni Peitong, Han Mingchen, Zhu Meisheng, et al. Effect of heat treatment on microstructures and mechanical properties of TB2 alloy strip[J]. Titanium Industry Progress, 2012, 29(6): 19-21.
[17]陈志永, 才鸿年, 王富耻, 等. 热轧TB2钛合金织构多晶板动态压缩性能的各向异性[J]. 稀有金属材料与工程, 2010, 39(12): 2101-2106.
Chen Zhiyong, Cai Hongnian, Wang Fuchi, et al. Anisotropy of dynamic compressive properties of textured polycrystal sheet of hot rolled TB2 titanium alloy[J]. Rare Metal Materials and Engineering, 2010, 39(12): 2101-2106.
[18]王振武. TB2钛合金丝材加工工艺研究[J]. 天津冶金, 2003(5): 9-12, 54.
Wang Zhenwu. Research on processing technology of TB2 titanium alloy wire[J]. Tianjin Metallurgy, 2003(5): 9-12, 54.
[19]江鹏. 透氢V₅₅Ti₃₀Ni₁₅合金的制备工艺及组织性能研究[D]. 哈尔滨: 哈尔滨理工大学, 2014.